In Genesis 22:16, God said, "By myself have I sworn, saith the Lord," a most remarkable testimony to the importance and verity of this promise to Abraham.

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8