Hebrews 11:28
By faith he kept the Passover, and put the sign of the blood on the houses, so that the angel of destruction might not put their oldest sons to death.
Exodus 12:21-30
Then Moses sent for the chiefs of Israel, and said to them, See that lambs are marked out for yourselves and your families, and let the Passover lamb be put to death.
Exodus 12:3-14
Say to all the children of Israel when they are come together, In the tenth day of this month every man is to take a lamb, by the number of their fathers' families, a lamb for every family:
Hebrews 9:19
For when Moses had given all the rules of the law to the people, he took the blood of goats and young oxen, with water and red wool and hyssop, and put it on the book itself and on all the people,
Hebrews 12:24
And to Jesus by whom the new agreement has been made between God and man, and to the sign of the blood which says better things than Abel's blood.
1 Peter 1:2
Who, through the purpose of God, have been made holy by the Spirit, disciples of Jesus, made clean by his blood: May you have grace and peace in full measure.