Exodus 12:37-47

37 And the people of Israel journeyed from Ram'eses to Succoth, about six hundred thousand men on foot, besides women and children.
38 A mixed multitude also went up with them, and very many cattle, both flocks and herds.
39 And they baked unleavened cakes of the dough which they had brought out of Egypt, for it was not leavened, because they were thrust out of Egypt and could not tarry, neither had they prepared for themselves any provisions.
40 The time that the people of Israel dwelt in Egypt was four hundred and thirty years.
41 And at the end of four hundred and thirty years, on that very day, all the hosts of the LORD went out from the land of Egypt.
42 It was a night of watching by the LORD, to bring them out of the land of Egypt; so this same night is a night of watching kept to the LORD by all the people of Israel throughout their generations.
43 And the LORD said to Moses and Aaron, "This is the ordinance of the passover: no foreigner shall eat of it;
44 but every slave that is bought for money may eat of it after you have circumcised him.
45 No sojourner or hired servant may eat of it.
46 In one house shall it be eaten; you shall not carry forth any of the flesh outside the house; and you shall not break a bone of it.
47 All the congregation of Israel shall keep it.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.