Leviticus 5:1

¹ And if any one sin, in that he heareth the voice of adjuration, he being a witness, whether he hath seen or known, if he do not utter [it], then he shall bear his iniquity.

Pollution

In Leviticus 22:6, this signifies a state of being in falsities. (Arcana Coelestia 1666)

In Hosea 9:3, this signifies appropriating things impure and profane derived from reasoning. (Arcana Coelestia 4581[10], Apocalypse Explained 654[56]) 'Pollution' denotes the truth of faith defiled.