Their prayer came to his holy habitation in heaven.2 Chronicles 30:27
Prayer is the never-failing response of the Christian in any case, in every plight. When you cannot use your sword, you may take up the weapon of prayer. Your powder may be damp, your bowstring may be relaxed, but the weapon of prayer need never be out of order. Satan laughs at the javelin, but he trembles at prayer. Swords and spears need to be sharpened, but prayer never rusts; and when we think it most blunt, it cuts the best. Prayer is an open door that no one can shut. Devils may surround you on all sides, but the way upward is always open, and as long as that road is unobstructed, you will not fall into the enemy's hand.
We can never be taken by siege or invasion as long as heavenly help can come down to us and relieve us in the time of our necessities. Prayer is never out of season: In summer and in winter its merchandise is precious. Prayer gains audience with heaven in the dead of night, in the middle of business, in the heat of noonday, in the shades of evening. In every condition, whether poverty or sickness or obscurity or slander or doubt, your covenant God will welcome your prayer and answer it from His holy place.
And prayer is never futile. True prayer is always true power. You may not always get what you ask, but you shall always have your real needs supplied. When God does not answer His children according to the letter, He does so according to the spirit. If you ask for cornmeal, will you be angry because He gives you fine flour? If you seek physical health, should you complain if instead He makes your sickness result in your spiritual health? Is it not better to have the cross sanctified than removed? This evening, my soul, do not forget to offer your petition and request, for the Lord is ready to grant your desires.