“The oath which he sware to our father Abraham,”
King James Version (KJV)
Lu 1:73 The oath. This oath is recorded in Ge 22:16-17. It was an oath in which God swore by himself, because he could swear by no greater (Heb 6:13,14), that he would surely bless Abraham and his posterity; that promise was now to be entirely fulfilled by the coming of the Messiah.