'Certainly Not' in the Bible

Elijah said to Elisha, "Please stay here, for Yahweh has sent me up to Bethel." Elisha said, "{As Yahweh lives} and {as your soul lives}, I will certainly not leave you!" So they went down [to] Bethel.

Elijah said to him, "Elisha, please stay here because Yahweh has sent me to Jericho." And he said, "{As Yahweh lives} and {as your soul lives}, I will certainly not leave you!" So they came to Jericho.

Then Elijah said to him, "Please stay here, because Yahweh has sent me to the Jordan." He said, "{As Yahweh lives} and {as your soul lives}, I will certainly not leave you!" So the two of them went on.

And Elisha saith unto him, 'Go, say, Thou dost certainly not revive, seeing Jehovah hath shewed me that he doth surely die.'