Cross reference
Exodus 12:47
47 All the congregation of Israel shall keep it.
Exodus 12:6
6 and ye shall keep it until the fourteenth day of the same month; and the whole assembly of the congregation of Israel shall kill it at even.
Numbers 9:13
13 But the man that is clean, and is not on a journey, and forbeareth to keep the passover, that soul shall be cut off from his people; because he offered not the oblation of Jehovah in its appointed season, that man shall bear his sin.
Exodus 12:3
3 Speak ye unto all the congregation of Israel, saying, In the tenth `day' of this month they shall take to them every man a lamb, according to their fathers' houses, a lamb for a household: