'Swore' in the Bible

So I swore [an oath] in My wrath,‘They shall not enter My rest [the promised land].’”

For we who believe [that is, we who personally trust and confidently rely on God] enter that rest [so we have His inner peace now because we are confident in our salvation, and assured of His power], just as He has said,“As I swore [an oath] in My wrath,They shall not enter My rest,”[this He said] although His works were completed from the foundation of the world [waiting for all who would believe].

For when God made the promise to Abraham, He swore [an oath] by Himself, since He had no one greater by whom to swear,