From that day when man disobeyed the divine mandate, from that moment when man knew sin, all men after the first (Adam) were dragged by sin and we are still dragged by it. This means that before we were perfect beings in the likeness of God, but now we have become beings full of imperfections.
From Adam who was the first man to the last human being has sinned, since there is no perfect human being, including those great men of the Bible, those we admire and respect, but, the truth is that they once also committed errors like us and in one way or another this can encourage us, in the sense that our imperfections can not go higher than the plan of redemption of Christ for humanity. His eternal love, His inexhaustible mercy has reached us, not because we are good or deserving of His love, but because He decided to love us and that explains everything.
Do you think there was a perfect man in the Bible? For that question is easily answered through the Scriptures themselves:
For all have sinned and fall short of the glory of God,
Every man has disobeyed the divine law, every man has sinned, every man makes mistakes, and the Bible does not keep silence about this, then, we find the errors of the apostle Peter when he denied Jesus three times and later he was hypocritical when he preached different messages, one for the Jews and another for the Gentiles (Galatians 2:11-14). Thomas had to see and touch to believe that Jesus was alive (John 20:29). The same apostle Paul again and again tells us how weak man is. The Bible does not hide from us the error of Jonah in preferring that the merciful God destroy Nineveh instead of saving them. The Word of God never hides the mistakes of those men who were used by God, why? For every man is a sinner, but God is true.
Now what? Is there no solution for our sinful condition? In no way, for Paul himself continues to say to the romans:
And all are justified freely by his grace through the redemption that came by Christ Jesus.
This is our solution to this condition, that even though we are imperfect beings, evil sinners, even so, God wanted to love us with a great love and sent His Son to die on the cross so that we can be justified by the faith that is in Christ Jesus, our beloved Lord.