Exodus 30
15 Ref The rich shall not give more, and the poor shall not give less, than the half shekel, when they give the offering of Jehovah, to make atonement for your souls.
16 Ref And thou shalt take the atonement money from the children of Israel, and shalt appoint it for the service of the tent of meeting; that it may be a memorial for the children of Israel before Jehovah, to make atonement for your souls.