'Iniquity' in the Bible

For I have told him that I will judge his house for ever, for the iniquity which he knew, because his sons did bring a curse upon themselves, and he restrained them not.

And therefore I have sworn unto the house of Eli, that the iniquity of Eli's house shall not be expiated with sacrifice nor offering for ever.

And David fled from Naioth in Ramah, and came and said before Jonathan, What have I done? what is mine iniquity? and what is my sin before thy father, that he seeketh my life?

Therefore deal kindly with thy servant; for thou hast brought thy servant into a covenant of Jehovah with thee: but if there be in me iniquity, slay me thyself; for why shouldest thou bring me to thy father?

And she fell at his feet, and said, Upon me, my lord, upon me be the iniquity; and let thy handmaid, I pray thee, speak in thine ears, and hear thou the words of thy handmaid.