And they that are {x} far off shall come and build in the temple of the LORD, and ye shall know that the LORD of hosts hath sent me to you. And this shall come to pass, if ye will diligently {y} obey the voice of the LORD your God.

(x) That is, the Gentiles by the preaching of the Gospel, will help toward the building of the spiritual temple.

(y) If you will believe and remain in the obedience of faith.

Wesley's Notes

6:15 They that are far off - This verse hath a double reference, one to the Jews, and the building of the material temple, the other to the bringing in of the Gentiles. And this - The literal part shall come to pass in your day, if you will obey the voice of the Lord. The mystical part shall come to pass also, and, if you will believe and obey, the Gentiles shall come in and be your brethren, and help to build the temple, the spiritual temple. But if you rebel and obey not, you shall be cast out and the Gentiles be taken in, to be God's people.

Jamieson-Fausset-Brown Bible Commentary

15. they . far off shall . build-The reason why the crowns were made of gold received from afar, namely, from the Jews of Babylon, was to typify the conversion of the Gentiles to Messiah, King of Israel. This, too, was included in the "peace" spoken of in Zec 6:13 (Ac 2:39; Eph 2:12-17). Primarily, however, the return of the dispersed Israelites "from afar" (Isa 60:9) to the king of the Jews at Jerusalem is intended, to be followed, secondly, by the conversion of the Gentiles from "far off" (Zec 2:11; 8:2-2, 23; Isa 60:10; 57:19).

build in the temple-Christ "builds the temple" (Zec 6:12, 13; Heb 3:3, 4): His people "build in the temple." Compare Heb 3:2, "Moses in His house."

ye shall know, &c.-when the event corresponds to the prediction (Zec 2:9; 4:9).

this shall come to pass, if ye . obey, &c.-To the Jews of Zechariah's day a stimulus is given to diligent prosecution of the temple building, the work which it was meanwhile their duty to fulfil, relying on the hope of the Messiah afterwards to glorify it. The completion of the temple shall "come to pass," if ye diligently on your part "obey the Lord." It is not meant that their unbelief could set aside God's gracious purpose as to Messiah's coming. But there is, secondarily, meant, that Messiah's glory as priest-king of Israel shall not be manifested to the Jews till they turn to Him with obedient penitence. They meanwhile are cast away "branches" until they be grafted in again on the Branch and their own olive tree (Zec 3:8; 12:10-12; Mt 23:39; Ro 11:16-24).

Matthew Henry's Concise Commentary

6:9-15 Some Jews from Babylon brought an offering to the house of God. Those who cannot forward a good work by their persons, must, as they are able, forward it by their purses: if some find hands, let others fill them. Crowns are to be made, and put upon the head of Joshua. The sign was used, to make the promise more noticed, that God will, in the fulness of time, raise up a great High Priest, like Joshua, who is but the figure of one that is to come. Christ is not only the Foundation, but the Founder of this temple, by his Spirit and grace. Glory is a burden, but not too heavy for Him to bear who upholds all things. The cross was His glory, and he bore that; so is the crown an exceeding weight of glory, and he bears that. The counsel of peace should be between the priest and the throne, between the priestly and kingly offices of Jesus Christ. The peace and welfare of the gospel church, and of all believers, shall be wrought, though not by two several persons, yet by two several offices meeting in one; Christ, purchasing all peace by his priesthood, maintaining and defending it by his kingdom. The crowns used in this solemnity must be kept in the temple, as evidence of this promise of the Messiah. Let us not think of separating what God has joined in his counsel of peace. We cannot come to God by Christ as our Priest, if we refuse to have him rule over us as our King. We have no real ground to think our peace is made with God, unless we try to keep his commandments.