What makes anyone believe that no one could be righteous after the fall of Adam. His disobedience didn't strip him of his ability to be righteous.
What is righteousness?
The problem is that humanity tries to create a sense of righteousness apart from God. Righteousness is simply what God says is right. Whatever God says.....that is righteousness. It is God's choice.
Let me explain. When God created everything, afterward He "saw that it was good." Six times in Genesis, we see this said: Gen 1:4, 10, 12, 18, 21, 25. This means that God created with a particular purpose in mind, and when He was finished, He saw that His purpose was complete. Hence, God was pleased. He saw that it was good in His eyes.
To illustrate, let's say that you sat down to draw a tree. In your mind, you have a particular image of what a tree looks like. You then try to draw it on paper. If what you have drawn is exactly what you wanted it to be, then you would be very pleased with your drawing.
However, this statement was never said of humanity. God did not see that humanity was good or pleasing. Why? Because, the purpose God had for humanity was not yet complete. God wanted Adam and Eve to eat from the tree of life. When that happened, then God would have found them to be pleasing. The choice was left up to them.
If you notice, God never told them about the other tree. He did not command them to eat from it. Instead, He wanted them to eat of it willingly. If God had told them the benefits of eating off this tree, then they would have eaten from it for the wrong reason. They would have sought the tree of life for benefits. If God would have commanded them, then they would be forced to eat from it. They would not be choosing to eat from it willfully, by their own choice.
For example, my wife never tells me to go out and buy her flowers. She loves flowers and wants them. But, she wants me to do this willingly. If she tells me, then she feels the whole moment is spoiled. She wants me to show my love willingly.
We know from John 17:3 that eternal life is knowledge of God. From the beginning, God desired an intimate relationship with us where we would be united as one in spirit to Him. That is what the tree of life represents. It is marriage to God. However, did we choose God? Did we willfully seek to know God in truth?
Instead, we ate from the tree of knowledge. We did not seek to know God intimately, we sought to develop a sense of righteousness apart from God.
Let us go back to the idea of righteousness and goodness. To be righteous is to be good. To be righteous or good means that we are pleasing in the eyes of God. This is expressed fully when Jesus was baptized in Matt 3:17 (KJ), "This is my beloved Son, in whom I am well pleased." The Father was saying, "This is my righteous and good son." Jesus would also later clarify in Matt 19:17 that only God is good.
What does this mean?
This means that righteousness and goodness are relative to the person who establishes what righteousness or goodness is. When we ate from the tree of knowledge, we established our own sense (or interpretation) of what righteousness and goodness are.
For example, you might eat a bowl of strawberry ice cream and say, "That is good" because you find it pleasing to you. Another person who is allergic to strawberries says, "that is bad" because they find it displeasing. Or...here is another example: a person might say that eating only vegetables is good because they find it pleasing to their own sense of good and evil. Another person, however, may say that eating only vegetables is bad because they find it displeasing to their own sense of good and evil.
However, as you and I know, it doesn't matter what humanity thinks is good or evil, because God says what is good and evil. If God says we should only eat vegetables, then only eating vegetables is good. Whatever is pleasing to God, not to ourselves, is what establishes righteousness.
The problem, of course, is that in eating of the tree of knowledge, our nature is to try and establish our own righteousness apart from God. We like to say, "This is right and this is wrong" based upon our own senses (feelings, thoughts, wisdom, perception)....rather than seeking God.
The Sabbath is a perfect example of this problem that Jesus had to address on several occasions. The Sabbath was commanded by God in the Ten Commandments. God made this law. Behind the command was God's intention and purpose. He had a reason for giving the law. When we read the law, we must interpret this intention. Some people take this law to be exact or precise. Under no conditions or circumstances are we to work on the Sabbath. In this, they take a literalist interpretation, and thus, rely on their own understanding. They do not seek God's will in the matter. They don't seek to know God or His purpose behind the law. Instead, they take the law at face value so that they manipulate it for their own end. This becomes apparent when Jesus faced this situation.
Mark 2:27-28 (NIV) Then he said to them, "The Sabbath was made for man, not man for the Sabbath. So the Son of Man is Lord even of the Sabbath."
Notice what Jesus says. The Sabbath was made for man. The law was made for man. The law was created to serve man, not rule man. Instead, God (who is called Lord) is to rule man. We were created for God, not for the law. This means that the law cannot make us righteous. The law is subject to our own understanding of it. However, God is not. God is Lord.
The problem is that we want to make ourselves righteous based upon own idea of what righteousness is. Man wants to tell God what is righteous. Man uses the law to His own advantage to tell God, "Hey, I obeyed the law, so now I am righteous." But God gave us the law to show us that we are not God.
To be good or righteous is to be god. Only God is good. The whole point is to prove to man that we are not God. Instead, we are separated from God. We cannot be righteous, because we cannot be godly apart from God. We need to be united as one with God so that God Himself is our righteousness.
Let's rewind for a moment back to the garden. When Adam and Eve ate from the tree, they didn't just disobey God. They made a choice to be separated from God. They chose to do things their way. The temptation was that Eve would be like God meaning that she would be independent. She could decide for herself what was right or wrong. She wouldn't have to obey God or do things His way. She could be her own person with her own ideas.
When Adam and Eve sinned, they were separated from God. They fell from glory as Paul says in the Romans. To fall from glory means they were changed. They became something that God did not recognize.
When God created Adam and Eve, He had a particular purpose for them. He wanted them to be a particular way. However, Adam and Eve chose to be something else. They were created in the image of God. After they sinned, they no longer resembled the image of God. Adam and Eve were glorious creatures, unashamed. Afterward, they saw they were naked. They were naked because God's glory no longer clothed them. They fell from glory. They were separated from God.
They had become nothing but dust. From dust we were created and to dust we returned.
This means that anyone born from Adam and Eve is born in this same condition. We are born as a fallen creature. We are born displeasing to God. We do not look anything like what God had intended for us to be.
It would be the same as if you set your heart on making beautiful earthen pottery. Let us say you began by making a wonderful bowl. It was striking and very pleasing. The only thing left was to fire it in the kiln. However, inside the kiln, the bowl cracked and broke apart. Your intention was that the bowl would be gloriously beautiful. However, the bowl became a useless lump of clay.
When you understand this condition, you begin to see that we are hopeless. Not only have we been born into sin, but we sin adding sin upon sin. Yes, we are born in state of sin. On top of this, we continue to disobey, adding sin upon sin. We can never be righteous. We cannot please God. No way, no how.
We need to be born again. We need to be transformed. On top of this, we need God Himself to be righteousness for us because we have no righteousness of our own.
When you understand all this, then and only then, will you ever fully appreciate Jesus Christ. I am not righteous and never will be. I am nothing but dust. However, because Christ is united as one with me, because of Him, I am glorious. I am pleasing to God. I am righteous because Christ who is righteous is my husband.
No man can reveal this to you. This truth that I have just presented can only be revealed to a person by God Himself. I could write pages upon pages and you would never understand. I pray, therefore, the Lord would reveal this to you. May Christ impart this to you so that you may see yourself in true light.
In Christ,
Blake
*edit: added this...*
Romans 7:18 (NAS)
"For I know that nothing good dwells in me, that is, in my flesh; for the willing is present in me, but the doing of the good is not."