Leviticus 5:18

18 `Then he hath brought in a ram, a perfect one, out of the flock, at thy valuation, for a guilt-offering, unto the priest; and the priest hath made atonement for him, for his ignorance in which he hath erred and he hath not known, and it hath been forgiven him;

Leviticus 5:18 Meaning and Commentary

Leviticus 5:18

And he shall bring a ram without blemish out of the flock,
&c.] (See Gill on Leviticus 5:15)

with thy estimation for a trespass [offering] to the priest;
along with the offering was to be brought an estimate of whatsoever damage had been done through the breach of any of the commands of God, where damage could take place, that so recompense be made as before directed; or else the ram brought was to be valued, and examined whether it was worth two shekels of silver, as before explained, (See Gill on Leviticus 5:15) but no fifth was required as in the former cases:

and the priest shall make atonement for him concerning his
ignorance wherein he erred, and wist [it] not, and it shall be
forgiven him; (See Gill on Leviticus 5:10) this is what the Jews call "Asham Talui", doubtful trespass offering.

Leviticus 5:18 In-Context

16 `And that which he hath sinned against the holy thing he repayeth, and its fifth is adding to it, and hath given it to the priest, and the priest maketh atonement for him with the ram of the guilt-offering, and it hath been forgiven him.

17 `And when any person sinneth, and hath done [something against] one of all the commands of Jehovah [regarding things] which are not to be done, and hath not known, and he hath been guilty, and hath borne his iniquity,

18 `Then he hath brought in a ram, a perfect one, out of the flock, at thy valuation, for a guilt-offering, unto the priest; and the priest hath made atonement for him, for his ignorance in which he hath erred and he hath not known, and it hath been forgiven him;

19 it [is] a guilt-offering; he hath been certainly guilty before Jehovah.'