Numbers 15:28
And the priest shall make an atonement for the soul that sinneth ignorantly, when he sinneth by ignorance before the LORD, to make an atonement for him; and it shall be forgiven him.
And the priest shall make atonement for the soul that sinneth ignorantly,.... By offering his sin offering for him:
when he sinneth by ignorance before the LORD; to whom it is known to be such, before whom all things are naked, open, and well known:
to make an atonement for him, and it shall be forgiven him; upon that atonement made by sacrifice; so the forgiveness of the sins of all the Lord's people proceeds upon an atonement made by the blood and sacrifice of Christ: full atonement of sin and free forgiveness are not contrary to each other.