Charles H. Spurgeon on Psalms 89:49

Lord, where are thy former loving kindnesses, which thou swarest unto David in thy truth? Here he comes to grand pleading, hand to hand work with the covenant angel. We may remind the Lord of his first deeds of love, his former love to his church, his former favour to ourselves. Then may we plead his oath, and beg him to remember that he has sworn to bless his chosen: and we may wrestle hard also, by urging upon him his own character, and laying hold upon his inviolable truth. When things look black we may bring forth our strong reasons, and debate the case with our condescending God, who has himself said, "Come now, and let us reason together."