'Sinned' in the Bible

I will arise and go to my father, and will say unto him, Father, I have sinned against heaven, and before thee,

And the son said unto him, Father, I have sinned against heaven, and in thy sight, and am no more worthy to be called thy son.

Pay attention and always be on guard [looking out for one another]! If your brother sins and disregards God’s precepts, solemnly warn him; and if he repents and changes, forgive him.