God is perfect love and perfect wisdom. We do not pray in order to change his will, but to bring our wills into harmony with his. (Sir William Temple)
Beware in your prayer, above everything, of limiting God, not only by unbelief, but by fancying that you know what he can do. (Andrew Murray)
God is not a cosmic bellboy for whom we can press a button to get things. (Harry Emerson Fosdick)
Sometimes we don’t recognize God’s answers to our prayers because we look for correspondence.