Bat occurs in Lev 11:19; Deu 14:18; Isa 2:20; and Letter of Jer 6:21. In Hebrew the word implies flying in the dark; which, taken in connection with the sentence ’moreover the othelaph and every creeping thing that flieth is unclean unto you; they shall not be eaten,’ is so clear, that there cannot be a mistake respecting the order of animals meant. At first sight, animals so diminutive, lean, and repugnant to the senses, must appear scarcely to have required the legislator’s attention; but the fact evidently shows that there were at the time men or tribes who ate animals classed with bats, a practice still in vogue in the great Australasian islands, where the frugivorous Pteropi of the harpi or goblin family, by our seamen denominated flying-dogs, and erroneously vampires, are caught and eaten; but where the insectivorous true bats, such as the genera common in Europe, are rejected. Some of the species of harpies are of the bulk of a rat, with from three to four feet of expanse between the tips of the wings; they have a fierce doglike head, and are nearly all marked with a space of rufous hair from the forehead over the neck and along part of the back. They reside in the most dense foliage of large trees, whence they fly out at night and do considerable damage to the plantations of fruit-trees. It was to one or more species of this section of Cheiroptera that the Mosaic prohibition was perhaps directed; and it is likewise to them that may be referred the foundation of the ancient legends concerning harpies, which, however much they may be distorted, have a basis of truth. Indeed, when we consider their voice, the faculty they have of feeding with their thumbs, their formidable teeth, their habit of flying in the day during dark weather, and their willingness, though they are frugivorous, to devour not only insects, but also the blood and flesh of small animals, we may admit that originally they were more daring in the presence of man; that their true characters are but moderately amplified by poetical fancy; and that the Mosaic injunction was strikingly appropriate.
In the text of Scripture where allusion is made to caverns and dark places, true Vespertilionidae, or insect-eating bats, similar to the European, are clearly designated.
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In the foregoing enumeration of unclean animals, the bat is reckoned among the birds, and such appears to be the most obvious classification; but modern naturalists have shown that it has no real affinity with birds. It is now included in the class of mammiferous quadrupeds, characterized by having the tegumentary membrane extended over the bones of the extremities in such a manner as to constitute wings capable of sustaining and conveying them through the air. The name of Cheiroptera, or hand- winged, has therefore been bestowed on this order. It comprises a great number of genera, species, and varieties; they are all either purely insectivorous or insecti-frugivorous, having exceedingly sharp cutting and acutely tuberculated jaw teeth, and the whole race is nocturnal. They vary in size from that of the smallest common mouse up to that of the vampire, or gigantic ternate bat, whose body is as large as that of a squirrel. The smaller species are abundantly distributed over the globe; the larger seem to be confined to warm and hot regions, where they exist in great numbers, and are very destructive to the fruits. The purely insectivorous species render great service to mankind by the destruction of vast numbers of insects, which they pursue with great eagerness in the morning and evening twilight. During the daytime they remain suspended by their hinder hooked claws in the lofts of barns, in hollow or thickly-leaved trees, etc. As winter approaches, in cold climates, they seek shelter in caverns, vaults, ruinous and deserted buildings, and similar retreats, where they cling together in large clusters, and remain in a torpid condition until the returning spring recalls them to active exertions. In the texts of Scripture, where allusion is made to caverns and dark places, true Vespertilionidae, or insect-eating bats, similar to the European, are clearly designated.
The well-known habits of the bat afford a forcible illustration of a portion of the fearful picture drawn in Isa 2:20 of the day when the Lord shall arise “to shake terribly the earth:’ “A man shall cast his idols of silver and his idols of gold to the moles and to the bats,” or, in other words, carry his idols into the dark caverns, old ruins, or desolate places, to which he himself shall flee for refuge; and so shall give them up, and relinquish them to the filthy animals that frequent such places, and have taken possession of them as their proper habitation. Bats are very common in the East (Kitto, Pict. Bible, note on Isa 2:20). Layard (Nineveh and Babylon, p. 307) describes his visit to a cavern on the banks of the Khabour swarming with bats. “Flying toward the light,” he adds, “these noisome beasts compelled us to retreat. They clung to our clothes, and our hands could scarcely prevent them settling on our faces. The rustling of their wings was like the noise of a great wind, and an abominable stench arose from the recesses of the cave.” They are also found delineated upon the Egyptian monuments (Wilkinson, 1:232, 234, abridgm.). Several species of these animals are found in Egypt, some of which occur doubtless in Palestine. Molossus Ruppelii, Vespertilio pipistrellus var. Aegyptius, Vauritus var. Aegypt., Taphozous perforatus, Nycteris Thebaica, Rhinopoma microphyllum, Rhinolophus tridens, occur in the tombs and pyramids of Egypt. SEE ZOOLOGY.
The atalleph,
By: Morris Jastrow, Jr., Immanuel Benzinger
This well-known winged mammal (in Hebrew
, Lev. xi. 19; Deut. xiv. 18; Isa. ii. 20) was considered by the Hebrews as belonging to the class of birds. The ancients in general considered it as a creature belonging both to the birds and to the mammalia, and partaking of the nature of both classes (Bochart, "Hierozoicon," s.v.). Like all night-birds, the Bat was considered unclean by the Hebrews. The numerous caves and ruins of Palestine afford shelter to innumerable swarms of bats; and Tristram ("Natural History of the Bible," pp. 45, 46) enumerates no less than seventeen species indigenous to that country. Several of these are also found in Europe and America.
BAT (‘atallçph).—The bat is a familiar object in Palestine, where no fewer than seventeen varieties have been identified. The two commonest are the horse-shoe bat (Rhinolophus ferrum equinum) and the long-eared bat (Plecotus auritus). All varieties in Palestine are insectivorous except one, the Xantharpyia œgyptiaca, which eats fruit. Bats flit about on noiseless wings by the score on warm summer evenings, especially in the Jordan Valley, and they are to be found in great numbers in ruins, old tombs, and caves all over the land, giving rise to many tales of ghostly habitation (Isa 2:20). They are counted as unclean ‘fowl,’ though a little separate from the birds, in Lev 11:19, Deu 14:18.
E. W. G. Masterman.
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The reference in Isa 2:20, “cast ... idols ... to the moles and to the bats” refers of course to these animals as inhabitants of dark and deserted places. As in the case of many animal names the etymology of
Bat. Bats are flying mammals. They are included on the list of unclean fowl (Lev 11:19). About 15 species of bats live in the Holy Land. Most feed on insects or fruit.
Bats hunt their food at night. An amazing built-in sonar system enables them to fly safely in total darkness. They sleep hanging upside down, often with their wings wrapped around them.
Some species gather in caves. (Isa 2:20) pictures discarded idols being cast "to the moles and bats," as if to say that is where such abominations belong.
A mouselike flying mammal with a furry body and wings.
According to modern definitions, bats are flying mammals. They have hair and make milk for their babies. But the Bible groups them with other flying animals, like birds. The bat is included in the two lists of unclean birds (Leviticus 11:19; Deuteronomy 14:18).
Bats live in caves, crevices, holes in trees, buildings, and even open spots on trees. In colder areas, they sleep for long periods (hibernate) or travel elsewhere. The normal resting position for a bat is hanging head downward. When bats fly, it looks as though they are swimming through the air because they move with their legs as well as with their wings.
The bat's thumb is free and ends in a single hook claw. It is used for climbing and hanging. The hind feet have five toes, all facing the same way. The large chest has space for muscles needed for flying. Their hearing is well-developed. Bats use sound to see, which is called "echo location."
Most bats eat insects, catching them in flight. Some insect-eating bats also consume fruit. Other bats, however, eat only fruit and plants, usually in groups. Fruit bats mainly live in tropical areas where fruit is always ripe. A few, though, are found in the holy land. These bats are typically larger than insect-eating ones, with wingspans reaching up to one and a half meters (five feet).
A third group includes flower-eating bats that feed on pollen and nectar. These small bats have long, pointed heads and long tongues. They are found only in tropical and semitropical regions. Three species of vampire bats, which do not occur in the holy land, eat blood by making a small cut and lapping it up. Meat-eating bats hunt birds, lizards, and frogs. Fish-eating bats catch fish at or near the surface of the water.
Eight kinds of bats live in the holy land. One of them, the little brown bat (genus Myotis), lives everywhere in the world, the most locations behind humans. It eats insects. Brown bats mostly live in caves. The females form maternity colonies of up to tens of thousands.
Two species of mouse-tailed bats (genus Rhinopoma) live in the holy land. Their tails are nearly as long as the head and body combined. They live in colonies in caves, rock clefts, wells, pyramids, palaces, and houses. Like the brown bat, they eat insects. The slit-faced or hollow-faced bats (genus Nycteris) also live in the holy land. They are insects and live in groups of six to 20.
Bats in Israel and Palestine range in size from a mouse to a rat. The largest species has a wingspan of over 51 centimeters (20 inches). Bats were considered ritually unclean to the Jews and were not to be eaten (Leviticus 11:19; Deuteronomy 14:18).
Aquifer Open Bible Dictionary © 2026 Mission Mutual, an adaptation of the Tyndale Open Bible Dictionary © 2023 Tyndale House Publishers. Licensed under CC BY-SA 4.0.
References:
Discussion:
The ancient Israelites, like many other peoples around the world, classified bats as birds since they fly. Bats are, however, mammals belonging to the order chiroptera. The Hebrew word is a generic term referring to any of the thirty-two different species of bat found in Israel. Bats are found around the world in all areas except the tundra of the far north and Antarctica. The bats indigenous to the Holy Land are of two types, those that eat fruit and those that eat insects.
Description:
Bats are the only mammals that can really fly (although some other mammals are able to glide from higher to lower places). They have fur, not feathers, and do not lay eggs, but give birth to their young. They have slender elongated forelegs and fingers that support a flap of skin joining their fingers to their toes, and this functions as a wing. They fly around at night and hang upside down from trees or overhanging rocks during the day. They have specially adapted ears and brains that enable them to gauge distance accurately by listening to the sounds they make echoing off objects in the vicinity.
Bats in Israel range in size from those about the size of mice to those about the size of large rats.
Special significance or symbolism:
Both fruit-eating and insect-eating types are considered to be unclean in the Old Testament. Many of the types of bat found in Israel live in caves, tombs, unoccupied houses, and old ruins. They were thus associated with death, desolation, destruction, and witchcraft.
Translation:
Since bats are found everywhere, it should not be hard to find a word for them. Words for bats that eat insects or fruit are suitable, but words for the vampire bats, fish-eating bats, or bird-eating bats of tropical Latin America should not be used. Since in many cultures bats are not associated with ruin and desolation, it may be necessary to use a phrase meaning something like “abandoned … to the bats” in ISA 2:20.
Animals in the Bible © United Bible Societies. Licensed under CC BY-SA 4.0.
