Genesis 22:15-17

And the angel of the Lord called to Abraham a second time from heaven, saying:

By my own self have I sworn, saith the Lord: because thou hast done this thing, and hast not spared thy only begotten son for my sake:

I will bless thee, and I will multiply thy seed as the stars of heaven, and as the sand that is by the sea shore; thy seed shall possess the gates of their enemies.