Hebrews 6:13
Berean Standard Bible
When God made His promise to Abraham, since He had no one greater to swear by, He swore by Himself,
King James Version
For when God made promise to Abraham, because he could swear by no greater, he sware by himself,
World English Bible
For when God made a promise to Abraham, since he could swear by no one greater, he swore by himself,
American Standard Version
For when God made promise to Abraham, since he could swear by none greater, he sware by himself,