II. Paul justifies his rejection of philosophy or "wisdom" and his adoption of the simpler but more difficult method of stating fact on three grounds. The first is that God's method had changed. For a time God had allowed the Greeks to seek Him by their own wisdom; now He presents Himself to them in the foolishness of the Cross (vers. 17-25). The second ground is that the wise do not universally respond to the preaching of the Cross, a fact which shows that it is not wisdom that preaching appeals to (vers. 26-31). And his third ground is that he feared lest, if he used "wisdom" in presenting the Gospel, his hearers might be only superficially attracted by his persuasiveness and not profoundly moved by the intrinsic power of the Cross (ii. 1-5).
1. His first reason is that God had changed His method. "After that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe." Even the wisest of the Greeks had attained only to inadequate and indefinite views of God. Admirable and pathetic are the searchings of the noble intellects that stand in the front rank of Greek philosophy; and some of their discoveries regarding God and His ways are full of instruction. But these thoughts, cherished by a few wise and devout men, never penetrated to the people, and by their vagueness and uncertainty were incapacitated from deeply influencing any one. To pass even from Plato to the Gospel of John is really to pass from darkness to light. Plato philosophizes, and a few souls seem for a moment to see things more clearly; Peter preaches, and three thousand souls spring to life. If God was to be known by men generally, it was not through the influence of philosophy. Already philosophy had done its utmost; and so far as any popular and sanctifying knowledge of God went, philosophy might as well never have been. "The world by wisdom knew not God." No safer assertion regarding the ancient world can be made.
That which, in point of fact, has made God known is the Cross of Christ. No doubt it must have seemed foolishness and mere lunacy to summon the seeker after God away from the high and elevating speculations of Plato on the good and the eternal and to point him to the Crucified, to a human form gibbeted on a malefactor's cross, to a man that had been hanged. None knew better than Paul the infamy attaching to that cursed death, and none could more distinctly measure the surprise and stupefaction with which the Greek mind would hear the announcement that it was there God was to be seen and known. Paul understood the offence of the Cross, but he knew also its power. "The Jews require a sign, and the Greeks seek after wisdom; but we preach Christ crucified, unto the Jews a stumbling-block and unto the Greeks foolishness, but unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God."
As proof that God was in their midst and as a revelation of God's nature, the Jews required a sign, a demonstration of physical power. It was one of Christ's temptations to leap from a pinnacle of the Temple, for thus He would have won acceptance as the Christ. The people never ceased to clamour for a sign. They wished Him to bid a mountain be removed and cast into the sea; they wished Him to bid the sun stand still or Jordan retire to its source. They wished Him to make some demonstration of superhuman power, and so put it beyond a doubt that God was present. Even at the last it would have satisfied them had He bid the nails drop out and had He stepped down from the Cross among them. They could not understand that to remain on the Cross was the true proof of Divinity. The Cross seemed to them a confession of weakness. They sought a demonstration that the power of God was in Christ, and they were pointed to the Cross. But to them the Cross was a stumbling-block they could not get over. And yet in it was the whole power of God for the salvation of the world. All the power that dwells in God to draw men out of sin to holiness and to Himself was actually in the Cross. For the power of God that is required to draw men to Himself is not power to alter the course of rivers or change the site of mountains, but power to sympathize, to make men's sorrows His own, to sacrifice self, to give all for the needs of His creatures. To them that believe in the God there revealed, the Cross is the power of God. It is this love of God that overpowers them and makes it impossible for them to resist Him. To a God who makes Himself known to them in self-sacrifice they quickly and delightedly yield themselves.