'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,