Who was faithful to him that appointed him,.... Or "made him"; Christ, as man, was made, but not as God; nor is the apostle speaking of the divine nature of Christ, but of his offices: wherefore this phrase designs the constitution and settlement of him in office; which may take in the eternal appointment of him as Mediator; the open promise of him in time; his mission, unction, and attestation from God; and his manifestation and declaration as such, at his ascension and session at God's right hand, when he was made Lord and Christ.
Now, as Mediator, he had a trust reposed in him; as the persons of all God's elect, and a fulness of all grace for them; the treasures of wisdom and knowledge, and eternal life and happiness; and also the glory of God in their salvation: which trust he has faithfully discharged as an apostle, and high priest; in a declaration of the whole will of God; in acknowledging it was his Father's doctrine he brought, and in seeking not his own, but his Father's glory; in redeeming and saving the persons committed to him; in distributing his grace to them; and in bringing them safe to glory; and in taking care of things pertaining to God:as also Moses was faithful in all his house; the passage referred to is in Nu 12:7 and which seems not so much to intend the fidelity of Moses in managing the affairs of God's house, as the largeness of the trust reposed in him, the dignity and honour conferred on him, and the power and authority he was invested with, in having the whole house of Israel committed to his care and charge, in which he exceeded all other prophets; and so the faithfulness of Christ is not so much to be understood of the discharge of his trust, as of the trust itself; and the sense is, that he was trusted much by God the Father, who constituted him Mediator, even as Moses was; and this sense best agrees with Heb 3:5.
And De Dieu has observed, that the Hebrew word Nman, in Misnic writings , signifies, as it does, one that is trusted, or is fit to be trusted, as Christ and Moses were; though the former is much more worthy than the latter, as follows.
Misn. Sanhedrin, c. 3. sect.