Some people have been walking with Jesus for Forty years and never grew. They are not forty year old Christian, they are still stuck in the first year repeated forty times. They're still babes in the faith.
Let me show you in the Bible what people who walked with God for forty years are saying Let's go to Romans the seventh chapter. The apostle Paul said the things I would I do not and the things which I would not that I do. This is the experience of one who walked with God for forty years. Still can't walk on his own and he is in need of the Savior.
So, you thought he would walk on his head and claim piety or have the "Holier Than Thou" attitude? Oh! no. The longer you are with Jesus, the more you recognize your frailties and the humbler you walk with Him. The victory, Paul said, is in Christ, "I Thank God through Jesus Christ" This is the only way to be more than conquerors and to overcome in the end. Not with a little self and a little of God. Get this right now, It is all Jesus Christ and none of yourself. In Romans 8:1, the Apostle concluded as follows: There is therefore now, no condemnation for those who are in Christ Jesus, they walk not after the flesh but they walk after the spirit"