Numbers 28:16-19

“On the fourteenth day of the first month is the LORD’s Passover, and on the fifteenth day of this month is a feast. Seven days shall unleavened bread be eaten. On the first day there shall be a holy convocation. You shall not do any ordinary work, but offer a food offering, a burnt offering to the LORD: two bulls from the herd, one ram, and seven male lambs a year old; see that they are without blemish