§ 02 · King James Bible
Exodus 12:23
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.
Simple English
For God will go through to punish the Egyptians. When he sees the blood on the top and sides of the door, God will go past the doorway and won't let the destroyer enter your homes to harm you.
* Work in progress - there may be occasional inaccuracies