God makes it clear why we sin - it’s a matter of the heart. Our heart is inclined toward sin from the time we are born. It is easy to fall into the routine of forgetting and forsaking God. But we can still choose whether or not to continue in sin.
We can yield to a specific temptation, or we can ask God to help us resist temptation when it comes. But never,never pin your whole faith on any human being, not if he is the best and wisest in the whole world.
Blessed are those who trust in the Lord and have made the Lord their hope and confidence.