Worship: in the Flesh or in the Spirit?

Worship that is acceptable with God is only that which is produced in our hearts by the Spirit of God. Any other source of worship is merely flesh, which is not acceptable with Him. Mere human emotions do not constitute acceptable worship.
Judaism was a religion suited to man in the flesh. Such devices were employed in Judaistic worship as musical instruments, trained singers, imposing clerical vestments and architecture, striking rituals, etc. It impressed the eye, the ear, and other senses and drew out the emotional responses of nature. The enjoyment of it all depended on neither the new nature nor the ministry of the Spirit. It was for man in the flesh.
There is much in Christendom today that bears the stamp of Judaism on it. The name of Christ is put on it, but it is not truly Christian. Such devices as those listed above are employed, and the awe and enjoyment resulting from it are called "worship". It is, however, nothing more than Cain offering to God the best produce he had. God can accept nothing less than Christ in worship.
The introduction, then, of anything that is Judaistic is from the flesh and, therefore, merely carnal. We may deceive ourselves that God is accepting it as worship, but Christ is not in it. He is not in Judaism. Let us look at some scriptures that bear on these principles.
It is possible to worship God in vain: "But in vain they do worship Me." Matt. 15:9. But it was not so with the Lord's offering to Him: "Christ, who through the eternal Spirit offered Himself without spot to God." Heb. 9:14.