Cross reference
Numbers 15:27
27 And if one person sin unwittingly, then he shall offer a she-goat a year old for a sin-offering.
Leviticus 4:27-28
27 And if any one of the common people sin unwittingly, in doing any of the things which Jehovah hath commanded not to be done, and be guilty;
28 if his sin, which he hath sinned, be made known to him, then he shall bring for his oblation a goat, a female without blemish, for his sin which he hath sinned.
Acts 3:17
17 And now, brethren, I know that in ignorance ye did it, as did also your rulers.
Acts 17:30
30 The times of ignorance therefore God overlooked; but now he commandeth men that they should all everywhere repent:
1 Timothy 1:13
13 though I was before a blasphemer, and a persecutor, and injurious: howbeit I obtained mercy, because I did it ignorantly in unbelief;