Exodus 29:1-3

¹“Now this is what you shall do to them to consecrate them to minister as priests to Me: take one young bull and two rams without blemish, ²and unleavened bread and unleavened cakes mixed with oil, and unleavened wafers spread with oil; you shall make them of fine wheat flour. ³You shall put them in one basket, and present them in the basket along with the bull and the two rams.