'Confessing' in the Bible

let Your ear now be attentive and Your eyes open to hear the prayer of Your servant which I am praying before You now, day and night, on behalf of the sons of Israel Your servants, confessing the sins of the sons of Israel which we have sinned against You; I and my father’s house have sinned.

Now while I was speaking and praying, and confessing my sin and the sin of my people Israel, and presenting my supplication before the Lord my God in behalf of the holy mountain of my God,

And all the country of Judea was going out to him, and all the people of Jerusalem; and they were being baptized by him in the Jordan River, confessing their sins.

Nevertheless many even of the rulers believed in Him, but because of the Pharisees they were not confessing Him, for fear that they would be put out of the synagogue;

Many also of those who had believed kept coming, confessing and disclosing their practices.

But if I do the very thing I do not want to do, I agree with the Law, confessing that the Law is good.