Hebrews 3:5

As a servant - The fidelity of Moses was the fidelity of a servant; he was not the framer of that Church or house; he was employed, under God, to arrange and order it: he was steward to the Builder and Owner.

For a testimony of those things - Every ordinance under the law was typical; every thing bore a testimony to the things which were to be spoken after; i.e. to Jesus Christ, his suffering, death, and the glory which should follow; and to his Gospel in all its parts. The faithfulness of Moses consisted in his scrupulous attention to every ordinance of God; his framing every thing according to the pattern showed him by the Lord; and his referring all to that Christ of whom he spoke as the prophet who should come after him, and should be raised up from among themselves; whom they should attentively hear and obey, on pain of being cut off from being the people of the Lord. Hence our Lord told the Jews, John 5:46 : If ye had believed Moses, ye would have believed me, for he wrote of me; "namely;" says Dr. Macknight, "in the figures, but especially in the prophecies, of the law, where the Gospel dispensation, the coming of its Author, and his character as Messiah, are all described with a precision which adds the greatest lustre of evidence to Jesus and to his Gospel."

Moses was faithful ...as a servant - Not as the head of the dispensation; not as having originated it; but as in the employ and under the direction of its great Founder and Author - the Messiah. As such a servant he deserves all the honor for fidelity which has ever been claimed for him, but it cannot be the honor which is due to him who is at the head of the family or house. Paul "assumed" that Moses was a "servant," and argued on that supposition, without attempting to prove it, because it was so often affirmed in the Old Testament, and must have been conceded by all the Jews. In numerous instances he is spoken of as "the servant of the Lord;" see Joshua 1:1-2; Joshua 9:24; 1 Chronicles 6:49; 2 Chronicles 24:9; Nehemiah 10:29; Daniel 9:11; Exodus 14:31; 1 Kings 8:56; Psalm 105:26. As this point was undisputed, it was only necessary to show that the Messiah was superior to a "servant," in order to make the argument clear.

For a testimony - To bear witness to those truths which were to be revealed; that is, he was the instrument of the divine communications to the people, or the medium by which God made his will known. He did not originate the truths himself; but he was the mere medium by which God made known his truth to his people - a servant whom He employed to make his will known. The word after here is not necessary in order to a just translation of this passage, and obscures the sense. It does not mean that he was a witness of those truths which were to be spoken "subsequently" to his time under another dispensation, nor those truths which the apostle proposed to consider in another part of the Epistle, as Doddridge supposes; but it means merely that Moses stood forth as a public witness of the truths which God designed to reveal, or which were to be spoken. God did not speak to his people "directly," and face to face, but he spoke through Moses as an organ, or medium. The sense is, Moses was a mere servant of God to communicate his will to man.

3:5 And Moses verily - Another proof of the pre - eminence of Christ above Moses. Was faithful in all his house, as a servant, for a testimony of the things which were afterwards to be spoken - That is, which was a full confirmation of the things which he afterward spake concerning Christ.