Isaiah 33:16

Do you doubt, O Christian, do you doubt whether God will fulfill his promise? Shall the strongholds of rock be carried by storm? Shall the storehouses of heaven fail? Do you think that your heavenly Father, though he knows that you need food and clothing, will yet forget you?

When not a sparrow falls to the ground without your Father, and the very hairs of your head are all numbered, will you mistrust and doubt him? Perhaps your affliction will continue upon you until you dare to trust your God, and then it will end. Many there are who have been tried and greatly distressed until at last they have been driven in sheer desperation to exercise faith in God, and the moment of their faith has been the instant of their deliverance; they have seen whether God would keep his promise or not.

Oh, I urge you, doubt him no longer! Do not please Satan, and do not trouble yourself by indulging anymore those hard thoughts of God. Do not think it a light matter to doubt Jehovah. Remember, it is a sin; and not a little sin either, but a most serious offense.

The angels never doubted him, nor the devils either: we alone, out of all the beings that God has fashioned, dishonor him by unbelief, and tarnish his honor by mistrust. Shame upon us for this! Our God does not deserve to be so basely suspected; in our past life we have proved him to be true and faithful to his word, and with so many instances of his love and of his kindness as we have received, and are daily receiving, at his hands, it is base and inexcusable that we allow a doubt to dwell within our heart. May we from now on wage constant war against doubts of our God—enemies to our peace and to his honor; and with an unwavering faith believe that what he has promised he will also perform. Lord, I believe, help thou mine unbelief.