Exodus 12:13
The blood will be a sign for you on the houses where you live. When I see the blood I will pass over you. No plague will befall you to destroy you when I strike the land of Egypt.
Hebrews 11:28
By faith he kept the Passover, and the sprinkling of the blood, that the destroyer of the firstborn should not touch them.
Genesis 17:11
You are to undergo circumcision. It will be the sign of the covenant between us.
Exodus 12:23
Jehovah will pass through to strike the Egyptians. When he sees the blood on the top and sides of the doorframe, Jehovah will pass over the door and will not allow the destroyer to come in to your houses to kill you.
Joshua 2:12
I pray that you will swear to me by Jehovah, since I have showed you kindness that you will also show kindness to my father's house, and give me a true token(sign) (pledge of truth);
1 Thessalonians 1:10
and to wait for his Son to come from heaven, his Son Jesus, whom he raised from death and who rescues us from God's anger (indignation) that is to come.
1 John 1:7
If we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.