Exodus 12:13

And the blood will be a sign on the houses where you are: when I see the blood I will go over you, and no evil will come on you for your destruction, when my hand is on the land of Egypt.

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.

Genesis 17:11

In the flesh of your private parts you are to undergo it, as a mark of the agreement between me and you.

Exodus 12:23

For the Lord will go through the land, sending death on the Egyptians; and when he sees the blood on the two sides and the top of the door, the Lord will go over your door and will not let death come in for your destruction.

Joshua 2:12

So now, will you give me your oath by the Lord, that, because I have been kind to you, you will be kind to my father's house,

1 Thessalonians 1:10

Waiting for his Son from heaven, who came back from the dead, even Jesus, our Saviour from the wrath to come.

1 John 1:7

But if we are walking in the light, as he is in the light, we are all united with one another, and the blood of Jesus his Son makes us clean from all sin.

Treasury of Scripture Knowledge

Summary

And the blood shall be to you for a token upon the houses where ye are: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you, when I smite the land of Egypt.

General references

Bible References

The blood

Exodus 12:23
For the Lord will go through the land, sending death on the Egyptians; and when he sees the blood on the two sides and the top of the door, the Lord will go over your door and will not let death come in for your destruction.
Genesis 17:11
In the flesh of your private parts you are to undergo it, as a mark of the agreement between me and you.
Joshua 2:12
So now, will you give me your oath by the Lord, that, because I have been kind to you, you will be kind to my father's house,
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.

And when

1 Thessalonians 1:10
Waiting for his Son from heaven, who came back from the dead, even Jesus, our Saviour from the wrath to come.
1 John 1:7
But if we are walking in the light, as he is in the light, we are all united with one another, and the blood of Jesus his Son makes us clean from all sin.

General references

Genesis 9:12
And God said, This is the sign of the agreement which I make between me and you and every living thing with you, for all future generations:
Exodus 9:4
And the Lord will make a division between the cattle of Israel and the cattle of Egypt; there will be no loss of any of the cattle of Israel.
Psalm 91:7
You will see a thousand falling by your side, and ten thousand at your right hand; but it will not come near you.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain