Leviticus 22:16

14And if a man eat of the holy thing unwittingly, then he shall put the fifth part thereof unto it, and shall give it unto the priest with the holy thing.

15And they shall not profane the holy things of the children of Israel, which they offer unto the LORD;

16Or suffer them to bear the iniquity of trespass, when they eat their holy things: for I the LORD do sanctify them.

17And the LORD spake unto Moses, saying,

18Speak unto Aaron, and to his sons, and unto all the children of Israel, and say unto them, Whatsoever he be of the house of Israel, or of the strangers in Israel, that will offer his oblation for all his vows, and for all his freewill offerings, which they will offer unto the LORD for a burnt offering;