And Aaron shall lay both his hands upon the head of the live goat, and confess over him all the iniquities of the children of Israel, and all their transgressions in all their sins, putting them upon the head of the goat, and shall send him away by the hand of a fit man into the wilderness: Aaron shall lay both his hands upon the head, etc. - What this imposition of hands meant see in the notes on Exodus 29:10 (note), and Leviticus 1:4 (note).
And confess over him all the iniquities - transgressions - sins - The three terms used here, Iniquities, עונת avonoth, from עוה avah, to pervert, distort, or turn aside; Transgressions, פשעים peshaim, from פשע pasha, to transgress, to rebel; and Sins, חטאת chattaoth, from חטא chata, to miss the mark, are supposed by the Jews to comprise every thing that implies a breach of the Divine law, or an offense against God. See Clarke's note on Genesis 12:13. Maimonides gives us the confession in the following words: -
"O Lord, thy people, the house of Israel, have sinned and done iniquity, and trespassed before thee. O Lord, make atonement now for the iniquities and transgressions and sins that thy people, the house of Israel, have sinned and transgressed against thee; as it is written in the law of Moses thy servant, saying: That in this day he shall make atonement for you, to cleanse you from all your sins before the Lord, and ye shall be clean." - See the Mishna, vol. ii., p. 329. When this confession was finished, the goat was sent by a proper hand to the wilderness, and there let loose; and nothing farther was ever heard of it. Did not all this signify that Christ has so carried and borne away our sins, that against them who receive him as the only true atoning sacrifice they should never more be brought to remembrance? On the head of the scape-goat, a piece of scarlet cloth was tied, and the tradition of the Jews states that if God accepted the sacrifice, the scarlet cloth turned white while the goat was led to the desert; but if God had not accepted this expiation, the redness continued, and the rest of the year was spent in mourning. From the foundation of the Church of God it was ever believed by his followers, that there were certain infallible tokens by which he discovered to genuine believers his acceptance of them and their services. This was sometimes done by a fire from heaven consuming the sacrifice; sometimes by an oracular communication to the priest or prophet; and at other times, according to the Jewish account, by changing the fillet or cloth on the head of the scape-goat from scarlet to white: but most commonly, and especially under the Gospel dispensation, he gives this assurance to true believers by the testimony of his Spirit in their consciences, that he has forgiven their iniquities, transgressions, and sins, for his sake who has carried their griefs, and borne their sorrows.