Exodus 12:23

Overview - Exodus 12
The beginning of the year is changed.
The passover is instituted.
11 The import of the rite of the passover.
15 Unleavened bread, etc.
29 The firstborn are slain.
31 The Israelites are driven out of the land.
37 They come to Succoth.
41 The time of their sojourning.
43 The ordinance of the passover.
Treasury of Scripture Knowledge

Exodus 12:23  (King James Version)
For the LORD will pass through to smite the Egyptians; and when he seeth the blood upon the lintel, and on the two side posts, the LORD will pass over the door, and will not suffer the destroyer to come in unto your houses to smite you.

will pass through
Exodus 12:12 Exodus 12:13

and will not
2 Samuel 24:16 ; Isaiah 37:36 ; Ezekiel 9:4 Ezekiel 9:6 ; 1 Corinthians 10:10 ; Hebrews 11:28 ; 12:24
Revelation 7:3 ; 9:4