We never know how God will answer our prayers, but we can expect that He will get us involved in His plan for the answer. If we are true intercessors, we must be ready to take part in God’s work on behalf of the people for whom we pray.
If we had more sleepless nights in prayer, there would be fewer souls to have a sleepless eternal night in hell.
By prayer we wrestle with God. God's power is to perform.
As prayer without faith is but a beating of the air, so trust without prayer [is] but a presumptuous bravado. He that promises to give, and bids us trust His promises, commands us to pray, and expects obedience to his commands. He will give, but not without our asking.