Exodus

Through faith he kept the passover, and the sprinkling of blood, lest he that destroyed the firstborn should touch them.

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 the house of their fathers, a lamb for an house:

And thus shall ye eat it; with your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is the Lord’s passover.

So kill the passover, and sanctify yourselves, and prepare your brethren, that they may do according to the word of the Lord by the hand of Moses.

Go, and gather the elders of Israel together, and say unto them, The Lord God of your fathers, the God of Abraham, of Isaac, and of Jacob, appeared unto me, saying, I have surely visited you, and seen that which is done to you in Egypt: