Melachim Bais 2:10

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

Melachim Bais 2:10 Meaning and Commentary

2 Kings 2:10

And he said, thou hast asked a hard thing
Not a common privilege, but what is rarely enjoyed, and difficult to obtain, few are so favoured of God:

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; meaning, that if his rapture was visible to Elisha, and he was favoured with a sight of his assumption, and be an eyewitness of it, this would be a token both to Elijah that it was agreeable to the Lord to ask of him this favour for him, and to Elisha to expect it, otherwise not.

Melachim Bais 2:10 In-Context

8 And Eliyahu took his aderet (mantle, cloak), and rolled it up, and struck the mayim, and they were split from here and from there, so that they two crossed over on charavah (dry ground [See Yehoshua 3:17]).

9 And it came to pass, when they were crossed over, that Eliyahu said unto Elishah, Request what I shall do for thee, before I am taken away from thee. And Elishah said, Let, now, a double portion of thy ruach be upon me.

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

11 And it came to pass, as they still walked on, and talked, that, hinei, there appeared a merkavah of eish, and susim of eish, and separated the two of them between them; and Eliyahu went up in a se’arah (storm wind, whirlwind) into Shomayim.

12 And Elishah saw, and he cried, Avi, Avi, the merkavah (war chariot) of Yisroel, and the parash (horsemen, charioteers) thereof. And he saw him no more; and he took hold of his own robe, and tore his apparel in two pieces.