Leviticus 5:17-19 - Unknown Trespass
17 And if anyone does wrong, and does any of the things which the Lord has given orders are not to be done, though he has no knowledge of it, still he is in the wrong and he is responsible. 18 Let him come to the priest with a sheep, a male without any mark out of the flock, of the value fixed by you, as an offering for his error; and the priest will take away the sin which he did in error, and he will have forgiveness. 19 It is an offering for his error: he is certainly responsible before the Lord.