Cross reference
Exodus 12:19
19 seven days leaven is not found in your houses, for any `one' eating anything fermented -- that person hath been cut off from the company of Israel, among the sojourners or among the natives of the land;
Exodus 12:15
15 Seven days ye eat unleavened things; only -- in the first day ye cause leaven to cease out of your houses; for any one eating anything fermented from the first day till the seventh day, even that person hath been cut off from Israel.
Exodus 12:48
48 `And when a sojourner sojourneth with thee, and hath made a passover to Jehovah, every male of his `is' to be circumcised, and then he doth come near to keep it, and he hath been as a native of the land, but any uncircumcised one doth not eat of it;
Exodus 12:43
43 And Jehovah saith unto Moses and Aaron, `This `is' a statute of the passover; Any son of a stranger doth not eat of it;
Exodus 23:15
15 the Feast of Unleavened things thou dost keep; seven days thou dost eat unleavened things, as I have commanded thee, at the time appointed `in' the month of Abib; for in it thou hast come forth out of Egypt, and ye do not appear `in' My presence empty;
Exodus 34:18
18 `The feast of unleavened things thou dost keep; seven days thou dost eat unleavened things, as I have commanded thee, at an appointed time, the month of Abib: for in the month of Abib thou didst come out from Egypt.
Numbers 9:13
13 `And the man who is clean, and hath not been on a journey, and hath ceased to prepare the passover, even that person hath been cut off from his people; because the offering of Jehovah he hath not brought near, in its appointed season, that man doth bear his sin.
Deuteronomy 16:3
3 `Thou dost not eat with it any fermented thing, seven days thou dost eat with it unleavened things, bread of affliction; for in haste thou hast come out of the land of Egypt; so that thou dost remember the day of thy coming out of the land of Egypt all days of thy life;
1 Corinthians 5:7-8
7 cleanse out, therefore, the old leaven, that ye may be a new lump, according as ye are unleavened, for also our passover for us was sacrificed -- Christ,
8 so that we may keep the feast, not with old leaven, nor with the leaven of evil and wickedness, but with unleavened food of sincerity and truth.