Exodus 12:23 repeats the instruction about the blood causing the Lord to pass over, reinforcing the sign from verse 13.

Exodus 13:16 commands a memorial sign on hand and forehead, commemorating the Passover deliverance marked by blood.

Hebrews 11:28 explicitly recalls the Passover blood sprinkling as an act of faith that saved Israel from the destroyer.

Joshua 2:19 uses the scarlet cord as a protective sign for Rahab's house, directly echoing the blood-marked doors that spared Israel.

Ezekiel 9:4 has a mark on the foreheads of the faithful to spare them from judgment, directly paralleling the blood-marked doorposts.

Revelation 7:3 seals God's servants on their foreheads for protection from judgment, a clear NT echo of the Passover blood as a protective mark.

Genesis 17:11 establishes circumcision as a covenant sign, just as the blood here is a sign marking Israelites for protection.

1 John 1:7 says Christ's blood cleanses from sin, paralleling the Passover blood's protective power though focusing on purification.