Charles H. Spurgeon on Psalms 119:6

All thy commandments. A partial obedience will never satisfy a child of God. The exclusion of any commandment from its supreme regard in the heart is the brand of hypocrisy. Even Herod could "do many things, "and yet one evil way cherished, and therefore unforsaken, was sufficient to show the sovereign power of sin undisturbed within. Saul slew all the Amalekites but one; and that single exception in the path of universal obedience marked the unsoundness of his profession, cost him the loss of his throne, and brought him under the awful displeasure of his God. And thus the foot, or the hand, or the right eye, the corrupt unmortified members, bring the whole body to hell. Reserves are the canker of Christian sincerity. Charles Bridges.