Hebrews 6:13
For God when he gave the promise to Abraham forasmuch as he had nothing greater to swear by, sware by himself,
Hebrews 3:18
And to whom did he swear that they should not enter into his rest, but to those who did not believe?
Hebrews 6:17
And thus God, designing more abundantly to demonstrate to the heirs of promise the immutability of his will, pledged himself by oath,
Treasury of Scripture Knowledge
Summary
But if ye will not hear these words, I swear by myself, saith the LORD, that this house shall become a desolation.
Bible References
I
Hebrews 3:18
And to whom did he swear that they should not enter into his rest, but to those who did not believe?
Hebrews 6:13
For God when he gave the promise to Abraham forasmuch as he had nothing greater to swear by, sware by himself,