Bible Verses About Oaths: God used, to show the immutability of his counsel

saying, “By Myself I have sworn, declares the LORD, that because you have done this and have not withheld your only son,

He shall also offer the ram as a peace offering to the LORD, along with the basket of unleavened bread. And the priest is to offer the accompanying grain offering and drink offering.

So tell them: As surely as I live, declares the LORD, I will do to you exactly as I heard you say.