Luke 15:18
I will arise and go to my father, and say to him, Father, I have sinned to Heaven, and before you;
Luke 15:21
And the son said to him, Father, I have sinned to Heaven, and before you; I am no longer worthy to be called your son.
Luke 18:13
And the publican, standing afar off, would not lift up his eyes to heaven, but smote on his breast, saying, God, be propitious to me a sinner.
Matthew 3:6
and were baptized by him in the river Jordan, confessing their sins.
Matthew 6:9
Pray, therefore, thus; Our Father in heaven, hallowed be thy name;
Matthew 6:14
For if you forgive men their offenses, your heavenly Father will forgive you;
Matthew 7:11
If you then, being evil, know how to give good gifts to your children, how much more will your Father in heaven give good gifts to them that ask him.
Luke 11:2
And he said to them, When you pray, say, Father, hallowed be thy name; thy kingdom come;
1 John 1:8-10
If we say we have not sin, we deceive ourselves, and the truth is not in us.