Matthew Henry Commentary 1 Chronicles 22:17-19

"David also commanded all the princes of Israel to help Solomon his son, [saying], Is not Jehovah your God with you? and hath he not given you rest on every side? for he hath delivered the inhabitants of the land into my hand; and the land is subdued before Jehovah, and before his people. Now set your heart and your soul to seek after Jehovah your God; arise therefore, and build ye the sanctuary of Jehovah God, to bring the ark of the covenant of Jehovah, and the holy vessels of God, into the house that is to be built to the name of Jehovah." — 1 Chronicles 22:17-19 (ASV)

Whatever is done towards making the word of God generally known and heeded is like bringing a stone, or an ingot of gold, towards erecting the temple. This should encourage us when we grieve that we do not see more fruit of our labors; much good may appear after our death, which we never thought of.

Let us not then be weary of doing good. The work is in the hands of the Prince of Peace. As he, the Author and Finisher of the work, is pleased to employ us as his instruments, let us then rise and act, encouraging and helping one another; working by his rule, after his example, in dependence on his grace, assured that he will be with us, and that our labor will not be in vain in the Lord.