Are there indeed things which we can ask that are actually hard for God to do? Yes and no. Clearly here it is as much so stated, but we also know ”Is anything too hard for the Lord?” — also clearly a rhetorical question with the NO answer implied. … So let’s ask for “Double portions!”
So he said, “You have asked a hard thing. Nevertheless, if you see me when I am taken from you, it shall be so for you; but if not, it shall not be so. ”
Then it happened, as they continued on and talked, that suddenly a chariot of fire appeared with horses of fire, and separated the two of them; and Elijah went up by a whirlwind into heaven. And Elisha saw it, and he cried out, “My father, my father, the chariot of Israel and its horsemen!” So he saw him no more. And he took hold of his own clothes and tore them into two pieces. He also took up the mantle of Elijah that had fallen from him, and went back and stood by the bank of the Jordan. Then he took the mantle of Elijah that had fallen from him, and struck the water, and said, “Where is the Lord God of Elijah?” And when he also had struck the water, it was divided this way and that; and Elisha crossed over.
II Kings 2:10-14 NKJV