But you shall be called the priests of the LORD; they shall speak of you as the ministers of our God; you shall eat the wealth of the nations, and in their glory, you shall boast.(Isaiah 61:6 ESV)
This literal promise to Israel belongs spiritually to the seed after the Spirit, namely, to all believers. If we live up to our privileges, we shall live unto God so clearly and distinctly that men shall see that we are set apart for holy service and shall name us the priests of the Lord.
We may work or trade as others do, and yet we may be solely and wholly the ministering servants of God. Our one occupation shall be to present the perpetual sacrifice of prayer, and praise, and testimony, and self-consecration to the living God by Jesus Christ.
This being our one aim, we may leave distracting concerns to those who have no higher calling. “Let the dead bury their dead.”
It is written, “Strangers shall stand and feed your flocks, and the sons of the alien shall be your plowmen and your vine-dressers,” They may manage politics, puzzle out financial problems, discuss science, and settle the last new quibbles of criticism; but we will give ourselves unto such service as becomes those who, like the Lord Jesus, are ordained to a perpetual priesthood.
Accepting this honourable promise as involving a sacred duty, let us put on the vestments of holiness and minister before the Lord all day long.–C.H. Spurgeon