The difficulty they raise is of the same kind as those which are painfully familiar in these days, when men of coarse minds and fleshly imaginations show by their crude objections their incapacity even to think on spiritual themes. The case they supposed was one they knew He could not find fault with so far as this world was concerned, for everything was done in accordance with the letter of the law of Moses, the inference being that whatever confusion there was in it must belong to what they would call His figment of the resurrection: "In the resurrection whose wife shall she be of the seven? for they all had her."
It is worthy of note that our Lord's answer is much less stern than in the former case. These men were not hypocrites. They were scornful, perhaps flippant; but they were not intentionally dishonest. The difficulty they felt was due to the coarseness of their minds, but it was a real difficulty to them. Our Lord accordingly gives them a kindly answer, not denouncing them, but calmly showing them where they are wrong: "Ye do err, not knowing the Scriptures, nor the power of God."
Ye know not the power of God, or ye would not suppose that the life to come would be a mere repetition of the life that now is, with all its fleshly conditions the same as now. That there is continuity of life is of course implied in the very idea of resurrection; but true life resides not in the flesh but in the spirit, and therefore the continuity will be a spiritual continuity; and the power of God will effect such changes on the body itself that it will rise out of its fleshly condition into a state of being like that of the angels of God. The thought is the same as that which was afterwards expanded by the apostle Paul in such passages as Rom. viii. 5-11, 1 Cor. xv. 35-54.
Ye know not the Scriptures, or you would find in the writings of Moses from which you quote, and to which you attach supreme importance, evidence enough of the great doctrine you deny. "Have ye not read that which was spoken unto you by God, saying, I am the God of Abraham, and the God of Isaac, and the God of Jacob?" Here, again, Jesus not only answers the Sadducees, but puts the great and all-important doctrine of the life to come and the resurrection of the body on its deepest foundation. There are those who have expressed astonishment that He did not quote from some of the later prophets, where He could have found passages much clearer and more to the point: but not only was it desirable that, as they had based their question on Moses, He should give His answer from the same source; but in doing so He has put the great truth on a permanent and universal basis; for the argument rests not on the authority of Moses, nor, as some have supposed, upon the present tense "I am," but on the relation between God and His people. The thought is that such a relation between mortal man and the eternal God as is implied in the declaration "I am the God of Abraham, and the God of Isaac, and the God of Jacob" is itself a guarantee of immortality. Not for the spirit only, for it is not as spirits merely but as men that we are taken into relation to the living God; and that relation, being of God, must share His immortality: "God is not the God of the dead, but of the living." The thought[19] is put in a very striking way in a well-known passage in the Epistle to the Hebrews: "But now they (the patriarchs) desire a better country, that is, an heavenly: _wherefore God is not ashamed to be called their God_: for He hath prepared for them a city."