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,
Hebrews 3:18
To whom did He take oath that they should not be admitted to His rest, if it was not to those who disobeyed Him?
Hebrews 6:17
Therefore, because God wanted to make the strongest demonstration of the unchangeable character of His purpose, He interposed with an 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
To whom did He take oath that they should not be admitted to His rest, if it was not to those who disobeyed Him?
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,