The Apostle 'Paul tells us that life and immortality (i.e. incorruptibility,ἀφθαρσία) were brought to light by the Gospel. These truths were but dimly made known before, though there had ever been sufficient for faith to lay hold of. Thus, the very first book of the Bible shows us the care and solemnity which the wandering patriarchs attached to their burial (Gen. 23;25;35;47;49.,1.); and the Apostle, in writing to the Hebrew Christians, affirms that it was by faith (not fasting, customs, or superstition) Joseph gave commandment concerning his bones. He believed in a God that raiseth the dead, in a God who will surely raise them by and by, and give them a glorious link with the promised land, as well as with the city which hath foundations-the better and heavenly country. Again, our Lord convicted the Sadducees of not knowing the Scriptures, or the power of God as to a future resurrection state, and a present living to God, of Abraham, Isaac, and Jacob; and this from God's words to that Moses who is said by Gibbon to have omitted the doctrine, but who, on the contrary, records this revelation in the same book of Exodus which contains the law of Sinai. (Comp. Luke 20)
I fully admit that there was a considerable measure of obscurity on this, as on many other truths, till He came who was the brightness of the glory of God, and the express image of His substance. But this was in perfect harmony with the Levitical or Jewish system, in which the veil was not yet rent, and God was governing a nation on earth as the vessel of His presence and testimony among the Gentiles. The faith of His elect, of course, penetrated much further, as may be seen in Job 19; Psa. 16, etc. But I am now explaining one simple and satisfactory reason why we should not expect a fuller statement of a future existence in the Pentateuch. It is because the main question there is of a people called to know the manifest exercise of righteous government on the part of a God who dwelt, and that even visibly, in their midst. Individual saints saw much more all through;. but God's government of Israel on the earth is the grand topic of the Old Testament, and the true solution of this seeming difficulty, which is really in perfect keeping with the times, place, people, and circumstances where it occurs.