2 Kings 2:8

4And Elijah said unto him, Elisha, tarry here, I pray thee; for the Lord hath sent me to Jericho. And he said, As the Lord liveth, and as thy soul liveth, I will not leave thee. So they came to Jericho.

5And the sons of the prophets that were at Jericho came to Elisha, and said unto him, Knowest thou that the Lord will take away thy master from thy head to day? And he answered, Yea, I know it; hold ye your peace.

6And Elijah said unto him, Tarry, I pray thee, here; for the Lord hath sent me to Jordan. And he said, As the Lord liveth, and as thy soul liveth, I will not leave thee. And they two went on.

7And fifty men of the sons of the prophets went, and stood to view afar off: and they two stood by Jordan.

8And Elijah took his mantle, and wrapped it together, and smote the waters, and they were divided hither and thither, so that they two went over on dry ground.

9And it came to pass, when they were gone over, that Elijah said unto Elisha, Ask what I shall do for thee, before I be taken away from thee. And Elisha said, I pray thee, let a double portion of thy spirit be upon me.

10And he said, Thou hast asked a hard thing: nevertheless, if thou see me when I am taken from thee, it shall be so unto thee; but if not, it shall not be so.

11And it came to pass, as they still went on, and talked, that, behold, there appeared a chariot of fire, and horses of fire, and parted them both asunder; and Elijah went up by a whirlwind into heaven.

12And Elisha saw it, and he cried, My father, my father, the chariot of Israel, and the horsemen thereof. And he saw him no more: and he took hold of his own clothes, and rent them in two pieces.