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. 29 And he shall lay his hand upon the head of the sin-offering, and kill the sin-offering in the place of burnt-offering. 30 And the priest shall take of the blood thereof with his finger, and put it upon the horns of the altar of burnt-offering; and all the blood thereof shall he pour out at the base of the altar. 31 And all the fat thereof shall he take away, as the fat is taken away from off the sacrifice of peace-offerings; and the priest shall burn it upon the altar for a sweet savor unto Jehovah; and the priest shall make atonement for him, and he shall be forgiven. 32 And if he bring a lamb as his oblation for a sin-offering, he shall bring it a female without blemish. 33 And he shall lay his hand upon the head of the sin-offering, and kill it for a sin-offering in the place where they kill the burnt-offering. 34 And the priest shall take of the blood of the sin-offering with his finger, and put it upon the horns of the altar of burnt-offering; and all the blood thereof shall he pour out at the base of the altar: 35 and all the fat thereof shall he take away, as the fat of the lamb is taken away from the sacrifice of peace-offerings; and the priest shall burn them on the altar, upon the offerings of Jehovah made by fire; and the priest shall make atonement for him as touching his sin that he hath sinned, and he shall be forgiven.

Matthew Henry's Commentary on Leviticus 4:27-35

Commentary on Leviticus 4:27-35

(Read Leviticus 4:27-35)

Here is the law of the sin-offering for a common person. To be able to plead, when charged with sin, that we did it ignorantly, and through the surprise of temptation, will not bring us off, if we have no interest in that great plea, Christ hath died. The sins of ignorance committed by a common person, needed a sacrifice; the greatest are not above, the meanest are not below Divine justice. None, if offenders, were overlooked. Here rich and poor meet together; they are alike sinners, and welcome to Christ. From all these laws concerning the sin-offerings, we may learn to hate sin, and to watch against it; and to value Christ, the great and true Sin-offering, whose blood cleanses from all sin, which it was not possible that the blood of bulls and of goats should take away. For us to err, with the Bible in our hands, is the effect of pride, sloth, and carelessness. We need to use frequent self-examination, with serious study of the Scriptures, and earnest prayer for the convincing influences of God the Holy Spirit; that we may detect our sins of ignorance, repent, and obtain forgiveness through the blood of Christ.