Charles H. Spurgeon on Psalms 56:3

I will trust in thee. Faith and fear stand together; and so fear and love. John Richardson, -1654.

Verses 3-4. Sometimes faith comes from prayer in triumph, and cries, Victoria. It gives such a being and existence to the mercy prayed for in the Christian's soul, before any likelihood of it appears to sense and reason, that the Christian can silence all his troubled thoughts with the expectation of its coming. So Hannah prayed, "and was no more sad." 1Sa 1:18. Yea, it will make the Christian disburse his praises for the mercy long before it is received. Thus high faith wrought in David. At what time I am afraid, I will trust in thee, and in the next words, In God I will praise his word; that is, he would praise God for his promise before there was any performance of it in him, when it had no existence but in God's faithfulness and David's faith. This holy man had such a piercing eye of faith, that he could see the promise when he was at the lowest ebb of misery, so certain and unquestionable in the power and truth of God, that he could then praise God as if the promised mercy had been actually fulfilled to him. William Gurnall.