'Sin' in the Bible

While I was still 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,

“Seventy weeks [of years, or 490 years] have been decreed for your people and for your holy city (Jerusalem), to finish the transgression, to make an end of sins, to make atonement (reconciliation) for wickedness, to bring in everlasting righteousness (right-standing with God), to seal up vision and prophecy and prophet, and to anoint the Most Holy Place.