Now, notice that when Jesus asks the rich young man, “Why do you call me good?” He is asking a serious question. He never says, "I am not good, only God is good. As John Chrysostom pointed out many hundreds of years ago…
When he [Jesus] says, “No one is good,” he does not say this to show that he is not good; far from it. For he does not say, “Why do you call me good? I am not good” but “No one is good,” that is, no human being. When he says this, he does not mean to exclude men from goodness but to make a comparison with the goodness of God. (John Chrysostom, Homilies on the Gospel of Matthew, 63.1)
I wouldn’t make sense for Jesus to mean “I am not good,” and then add, "You lack one thing; go, sell what you own, and give the money to the poor, and you will have treasure in heaven; then come, follow me.”
What then is Jesus claiming?
If Jesus is really saying, “I am NOT good," then he would also be saying, “I am NOT God.” That is the whole point, of your posting these lines, no?
So if Jesus is denying that he is God, Jesus must also be denying that he is good. Jesus is not, then, GOOD because ONLY God is good.
Why is that a problem?
Because if Jesus is doing that, it doesn’t fit with the second half of the story. The rest of the story just wouldn’t make sense. What does Jesus go on to do?
The young man says, “I have kept the commandments.”
Jesus implies “Who gave the Ten Commandments? Yahweh – God, correct?”
The young man is saying, "I have kept all the commandments Yahweh says I must do to have eternal life.”
And then Jesus is implicitly saying, “Ah, you are missing something. You are lacking something. The Ten Commandments that were written by the finger of God on the tablets of stone, that is NOT enough. You have got to do something else if you want eternal life. You know what that something else is? You have to give everything up and come follow ME.”
That is a problem.
Jesus is adding something to the Ten Commandments. the necessity of following – not Yahweh or HIS Law (He doesn’t say, “Go and follow Yahweh!”) – but of following him – Jesus.
If Jesus is really claiming that he is NOT good, then why is he saying, “You have to follow me If you want eternal life." Would it make sense for Jesus to mean “You have to follow me because… I am really wicked. I’m a bad man?”
Remember the logic: If Jesus is denying that he is good, then he is also denying that he is God. And if he is denying that he is God, then it doesn’t make any sense for him to tell the guy that the only thing he is lacking for eternal life is to follow him, the not very good Jesus who is also not God.