Hebrews 6:13

For when God made His promise to Abraham, He took an oath by Himself, since He had no one greater by whom He could take it,

Treasury of Scripture Knowledge

Summary

The LORD of hosts hath sworn by himself, saying, Surely I will fill thee with men, as with caterpillers; and they shall lift up a shout against thee.

Sworn

Bible References

Sworn

Hebrews 6:13
For when God made His promise to Abraham, He took an oath by Himself, since He had no one greater by whom He could take it,