'Iniquity' in the Bible

The Lord is righteous within her;He will do no injustice.Every morning He brings His justice to light;He does not fail.But the unjust person knows no shame.

“The remnant of Israel will do no wrongNor speak lies,Nor will a deceitful tongueBe found in their mouths;For they will eat and lie downWith no one to make them tremble and feel afraid.”