Charles H. Spurgeon on Psalms 86:13

For great is thy mercy toward me. Personal experience is ever the master singer. Whatever thou art to others, to me thy mercy is most notable. The psalmist claims to sing among the loudest, because his debt to divine mercy is among the greatest. And thou hast delivered my soul from the lowest hell. From the direst death and the deepest dishonour David had been kept by God, for his enemies would have done more than send him to hell had they been able. His sense of sin also made him feel as if the most overwhelming destruction would have been his portion had not grace prevented, therefore does he speak of deliverance from the nethermost abode of lost spirits. There are some alive now who can use this language unfeignedly, and he who pens these lines most humbly confesses that he is one. Left to myself to indulge my passions, to rush onward with my natural vehemence, and defy the Lord with recklessness of levity, what a candidate for the lowest abyss should I have made myself by this time. For me, there was but one alternative, great mercy, or the lowest hell. With my whole heart do I sing, "Great is thy mercy towards me, and thou hast delivered my soul from the lowest hell." The psalmist here again touches a bold and joyful note, but soon he exchanges it for the mournful string.