2 Kings 3:17-18
For this is what the LORD says: You will see neither wind nor rain, yet this valley will be filled with water, and you, your cattle and your other animals will drink. This is an easy thing in the eyes of the LORD; he will also hand Moab over to you.

So often the things that we see as difficult or impossible are really easy in the eyes of the Lord. The kings of Israel, Judah and Edom thought that their lack of water meant certain destruction for them and their armies. Yet God had a different plan.
Sometime the only thing that stands between us and an unimaginable miracle is our ask. We have not because we ask not, (Js. 4:2).
What is even more inspiring about God's answer through Elisha is that what seems impossible for us is not only possible, but "easy" in the eyes of the Lord. Not only was the request simple in that it took no effort at all, but it also took little thought or consideration. Israel and Judah were God's people and Jehoshaphat had honored the Lord. God delights to bless His obedient children.

Psalm 34:17
The righteous cry out, and the LORD hears them; he delivers them from all their troubles.

Psalm 37:23
If the LORD delights in a man's way, he makes his steps firm

Psalm 69:33
The LORD hears the needy and does not despise his captive people.

Psalm 147:11
the LORD delights in those who fear him, who put their hope in his unfailing love.

Oh yea, and as if providing water was not enough, God promises the kings that he would also defeat Moab. We ask for so little when God is so ready to give so much more than we could ask or imagine (Eph. 3:20).

So why not ask? Why not ask more? Why not expect, hope, believe, trust?
For God, what we ask is an "easy thing."

God - expand my faith and teach me to turn to You in everything. Let nothing be too big or too small to bring before You. Let me see Your power and grace through answered prayer. Amen.