2 Kings 2:6-8 (KJV)

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

8 And 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.