Genesis 22:15 KJV

In context

14 And Abraham called the name of that place Jehovah–jireh: as it is said to this day, In the mount of the Lord it shall be seen.

15 And the angel of the Lord called unto Abraham out of heaven the second time,

16 And said, By myself have I sworn, saith the Lord, for because thou hast done this thing, and hast not withheld thy son, thine only son:

Read all of Genesis 22