6 And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD; seven days ye must eat unleavened bread.
Leviticus 23:6 Cross References - EJ2000
Exodus 12:15-16
15 Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
16 And in the first day there shall be a holy convocation, and in the seventh day there shall be a holy convocation to you; no manner of work shall be done in them, except that which every person must eat, that only may be done of you.
Exodus 13:6-7
Exodus 34:18
18 ¶ The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, in the time of the month Abib; for in the month Abib thou didst come out from Egypt.
Numbers 28:17-18
Deuteronomy 16:8
8 Six days thou shalt eat unleavened bread, and on the seventh day shall be a solemn feast unto the LORD thy God; thou shalt do no work in this.
Acts 12:3-4
3 And because he saw it pleased the Jews, he proceeded further to take Peter also. (Then were the days of unleavened bread.)
4 And when he had apprehended him, he put him in prison and delivered him to four quaternions of soldiers to keep him, intending after the Passover to bring him forth to the people.