'Iniquity' in the Bible

For I have told him that I will judge his house forever, for the iniquity which he knew, because his sons brought a curse on themselves, and he didn't restrain them.

Therefore I have sworn to the house of Eli, that the iniquity of Eli's house shall not be removed with sacrifice nor offering forever."

David fled from Naioth in Ramah, and came and said before Jonathan, "What have I done? What is my iniquity? What is my sin before your father, that he seeks my life?"

Therefore deal kindly with your servant; for you have brought your servant into a covenant of Yahweh with you: but if there be in me iniquity, kill me yourself; for why should you bring me to your father?"

She fell at his feet, and said, "On me, my lord, on me be the iniquity; and please let your handmaid speak in your ears. Hear the words of your handmaid.