(18) And he shall bring a ram.--Under such circumstances of suspense and feelings of guilt, he is to bring the same victim as in the former instance.

With thy estimation.--That is, according to thy i.e., Moses' valuation, the ram is to be worth two shekels. (See Leviticus 5:15.)

And wist it not.--Better, though he wist or knew not, the precise sacred thing which he used, as the same phrase is rendered in the preceding verse. That is, to be on the right side, the priest shall make an atonement for him concerning this error of inadvertence, though the offender is uncertain whether he actually committed the offence or not. Still, as the case is a doubtful one, he is exempt from the additional fifth part which the transgressor had to pay who indisputably committed this offence in ignorance. (See Leviticus 5:16.)

5:14-19 Here are offerings to atone for trespasses against a neighbour. If a man put to his own use unwittingly, any thing dedicated to God, he was to bring this sacrifice. We are to be jealous over ourselves, to ask pardon for the sin, and make satisfaction for the wrong, which we do but suspect ourselves guilty of. The law of God is so very broad, the occasions of sin in this guilty of. The law of God is so very broad, the occasions of sin in this world are so numerous, and we are so prone to evil, that we need to fear always, and to pray always, that we may be kept from sin. Also we should look before us at every step. The true Christian daily pleads guilty before God, and seeks forgiveness through the blood of Christ. And the gospel salvation is so free, that the poorest is not shut out; and so full, that the most burdened conscience may find relief from it. Yet the evil of sin is so displayed as to cause every pardoned sinner to abhor and dread it.And he shall bring a ram without blemish out of the flock,.... 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.