If he be not able to bring a lamb - See the conclusion at Leviticus 1:16; (note).
Special occasions are mentioned on which sin-offerings are to be made with a particular confession of the offence for which atonement is sought Leviticus 5:5.
Swearing - Adjuration. The case appears to be that of one who has been put upon his oath as a witness by a magistrate, and fails to utter all he has seen and heard (compare the marginal references. and Proverbs 29:24; Numbers 5:21).
Hid from him - Either through forgetfulness or indifference, so that purification had been neglected. In such a case there had been a guilty negligence, and a sin-offering was required. On the essential connection between impurity and the sin-offering, see Leviticus 12:1.
Pronouncing - Idly speaking Psalm 106:33. The reference is to an oath to do something uttered in recklessness or passion and forgotten as soon as uttered.
His trespass offering - Rather, as his forfeit, that is, whatever is due for his offence. The term “trespass-offering” is out of place here, since it has become the current designation for a distinct kind of sin-offering mentioned in the next section (see Leviticus 5:14 note).
See Leviticus 1:14-16; Leviticus 12:8. In the larger offerings of the ox and the sheep, the fat which was burned upon the altar represented, like the burnt-offering, the dedication of the worshipper; in this case, the same meaning was conveyed by one of the birds being treated as a distinct burnt-offering.
A lamb - One of the flock, either a sheep or a goat.
For his trespass, which he hath committed - As his forfeit for the sin he hath committed.
tenth part of an ephah i. e. - “the tenth deal;” probably less than half a gallon. See Leviticus 19:36 note. This sin-offering of meal was distinguished from the ordinary מנחה mı̂nchāh Leviticus 2:1 by the absence of oil and frankincense.