'Passover' in the Bible
"Let the {Israelites} observe the Passover at its appointed time.
And they observed the Passover on the fourteenth day of the month {at twilight} in the desert of Sinai. According to all that Yahweh commanded Moses, thus the {Israelites} did.
And it happened, men who were unclean {by a dead person} were not able to perform the Passover on that day. And they came {before} Moses and Aaron on that day.
"Speak to the {Israelites}, saying, 'Each man that is unclean {by a dead person} or [is] on a far journey, you or your {descendants}, he will observe the Passover of Yahweh.
They will leave none of it until morning, and they will not break a bone in it; they will observe it according to every decree of the Passover.
But the man who [is] clean and not on a journey, and he fails to observe the Passover, that person will be cut off from the people because he did not present the offering of Yahweh on its appointed time. That man will bear his guilt.
If an alien dwells with you he will observe the Passover of Yahweh according [to] the decree of the Passover and according [to] its stipulation; thus you will have one decree for you, for the alien and for the native of the land.'"
" 'On the fourteenth day of the first month [is] the Passover for Yahweh.
They set out from Rameses on the first month, on the fifteenth day of the first month; on the next day after the Passover the {Israelites} went out {boldly} {in the sight} of all the Egyptians