Ephesians 3:4-6

Verse 4. Whereby when ye read. By the bare reading of which you may understand the view which I entertain of the plan of salvation, and the knowledge which I have of God's method of saving men, particularly of his intention in regard to the salvation of the Gentiles.

In the mystery of Christ. This does not refer to anything mysterious in the person of Christ; or the union of the Divine and human nature in him; or to anything difficult of apprehension in the work of the atonement. It means the hitherto concealed doctrine, that through the Messiah the Gentiles were to be received to the same privileges as the Jews, and that the plan of salvation was to be made equally free for all. This great truth had been hitherto concealed, or but partially understood, and Paul says that he was appointed to make it known to the world. His knowledge on the subject, he says, could be understood by what he had said, and from that they could judge whether he was qualified to state and defend the doctrines of the Gospel. Paul evidently supposed that the knowledge which he had on that subject was of eminent value; that it was possessed by few; that it was important to understand it. Hence he dwells upon it. He speaks of the glory of that truth. He traces it back to the counsels of God. He shows that it entered into his eternal plans; and he evidently felt that the truth which he had communicated in the former part of this epistle was among the most important that could come before the mind.

(a) "mystery" Eph 1:9 (*) "mystery" "secret"
Verse 5. Which in other ages. The great purposes of God in regard to the salvation of mankind were not revealed. Rom 16:25.

And prophets. Those who exercised the office of a prophet or inspired teacher in the Christian church. 1Cor 12:1.

By the Spirit. This proves that those who exercised the office of prophet in the Christian church were inspired. They were persons endowed in this manner for the purpose of imparting to the newly-formed churches the doctrines of the Christian system. There is no evidence that this was designed to be a permanent order of men in the church. They were necessary for settling the church on a permanent basis, in the absence of a full written revelation, and when the apostles were away. When the volume of revelation was finished, and the doctrines of the gospel were fully understood, the functions of the office ceased.

(b) "made known" Mt 13:17, Rom 16:25, 1Pet 1:10-12
Verse 6. That the Gentiles should be fellow-heirs. Fellow-heirs with the ancient people of god--the Jews--and entitled to the same privileges. Rom 8:17, Eph 2:13-18
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