Adams on Psalm 18:38-40 & 19:12

18:38-40 I have wounded them, etc. Though passion possess our bodies, let "patience possess our souls." The law of our profession binds us to a warfare; patiendo vincimus, our troubles shall end, our victory is eternal. Hear David's triumph, "I have wounded them that they were not able to rise: they are fallen under my feet. Thou hast subdued under me those that rose up against me. Thou hast given me the necks of mine enemies," etc. They have wounds for their wounds; and the treaders down of the poor are trodden down by the poor. The Lord will subdue those to us that would have subdued us to themselves; and though for a short time they rode over our heads, yet now at last we shall everlastingly tread upon their necks. Lo, then, the reward of humble patience and confident hope!

19:12 Who can understand his errors? Who can tell how oft he offendeth? No man. The hairs of a man's head may be told, the stars appear in multitudes, yet some have undertaken to reckon them; but no arithmetic can number our sins. Before we can recount a thousand we shall commit ten thousand more; and so rather multiply by addition than divide by subtraction; there is no possibility of numeration. Like Hydra's head, while we are cutting off 20 by repentance, we find a hundred more grown up. It is just, then, that infinite sorrows shall follow infinite sins.

Cleanse thou me from secret faults Learn to see thy spots. Many have unknown sins, as a man may have a mole on his back and himself never know it. Lord, cleanse me from my secret faults. But have we not spots whereof we are not ignorant? In diseases sometimes nature is strong enough to put forth spots, and there she cries to us by these outward declarations that we are sick. Sometimes she cannot do it but by the force of cordials. Sometimes conscience of herself shows us our sins; sometimes she cannot but by medicines, arguments that convince us out of the holy word. Some can see, and will not, as Balaam; some would see, and cannot, as the eunuch; some neither will nor can, as Pharaoh; some both can and will, as David. ... We have many spots which God does not hear from us, because we see them not in ourselves. Who will acknowledge that error, whereof he does not know himself guilty? The sight of sins is a great happiness, for it causeth an ingenuous confession.

As quoted in Spurgeon's Treasury of David