TSK · Deuteronomy 32:40

I will bring you to the land I swore to give to Abraham, to Isaac, and to Jacob– and I will give it to you as a possession. I am the LORD.’”

Say to them,‘As I live, says the LORD, I will surely do to you just what you have spoken in my hearing.

You must be truthful, honest and upright when you take an oath saying,‘As surely as the LORD lives!’ If you do, the nations will pray to be as blessed by him as you are and will make him the object of their boasting.”

In the same way God wanted to demonstrate more clearly to the heirs of the promise that his purpose was unchangeable, and so he intervened with an oath,