Exodus 12:13

13 `And the blood hath become a sign for you on the houses where ye [are], and I have seen the blood, and have passed over you, and a plague is not on you for destruction in My smiting in the land of Egypt.

Exodus 12:13 Meaning and Commentary

Exodus 12:13

And the blood shall be to you for a token upon the houses
where you are
The blood of the passover lamb being sprinkled on the two sideposts and upper doorposts of the houses inhabited by the Israelites, or where they were eating the passover; this should be a sign or token to them of the Lord's making good his promises, to them, and so of their safety, and to the destroying angel not to enter therein, but pass by and save them:

and when I see the blood, I will pass over you;
for which reason this ordinance now instituted was called the passover, because the Lord, on sight of the blood sprinkled, passed over the houses of the Israelites to those of the Egyptians; or "leaped", as Jarchi says, the word signifies, skipped from one Egyptian house to another, passing by that of the Israelites:

and the plague shall not be upon you, to destroy you, when I smite the
land of Egypt,
the pestilence with which the firstborn should be destroyed.

Exodus 12:13 In-Context

11 `And thus ye do eat it: your loins girded, your sandals on your feet, and your staff in your hand, and ye have eaten it in haste; it is Jehovah's passover,
12 and I have passed over through the land of Egypt during this night, and have smitten every first-born in the land of Egypt, from man even unto beast, and on all the gods of Egypt I do judgments; I [am] Jehovah.
13 `And the blood hath become a sign for you on the houses where ye [are], and I have seen the blood, and have passed over you, and a plague is not on you for destruction in My smiting in the land of Egypt.
14 `And this day hath become to you a memorial, and ye have kept it a feast to Jehovah to your generations; -- a statute age-during; ye keep it a feast.
15 Seven days ye eat unleavened things; only -- in the first day ye cause leaven to cease out of your houses; for any one eating anything fermented from the first day till the seventh day, even that person hath been cut off from Israel.
Young's Literal Translation is in the public domain.