2 Kings 2:2, 4, 6

And Elijah said unto Elisha, Tarry here, I pray thee; for Jehovah hath sent me as far as Beth-el. And Elisha said, As Jehovah liveth, and as thy soul liveth, I will not leave thee. So they went down to Beth-el.

And Elijah said unto him, Elisha, tarry here, I pray thee; for Jehovah hath sent me to Jericho. And he said, As Jehovah liveth, and as thy soul liveth, I will not leave thee. So they came to Jericho.

And Elijah said unto him, Tarry here, I pray thee; for Jehovah hath sent me to the Jordan. And he said, As Jehovah liveth, and as thy soul liveth, I will not leave thee. And they two went on.