20 David said to Solomon his son, "Be strong and courageous, and do it. Don't be afraid, nor be dismayed; for Yahweh God, even my God, is with you. He will not fail you, nor forsake you, until all the work for the service of the house of Yahweh is finished.
*Minor differences ignored. Grouped by changes, with first version listed as example.
The Lord God - my God, will be with thee - "The Word of the Lord my God will be thy assistant." - T.
And David said to Solomon his son, be strong, and of good courage, and do it,.... See Gill on 1-Chronicles 28:10.
fear not, nor be dismayed; that thou shalt meet with any opposition in the work, or not be able to finish it for want of materials and workmen, or money to pay them:
for the Lord God, even my God, will be with thee; to guide and direct, prosper and succeed; the Targum is,"the Word of the Lord God, my God, will be thy help:"
he will not fail thee, nor forsake thee; a promise made to Joshua, and is applicable to every good man in whatsoever good work he is concerned, Joshua 1:5,
until thou hast finished all the work for the service of the house of the Lord; built the temple, and all the apartments of it, and courts belonging to it, and made and provided all the utensils and vessels necessary for the service and worship of God.
Be strong and of good courage--The address begun in 1-Chronicles 28:9 is resumed and concluded in the same strain.
In conclusion, David encourages his son to go forward to the work with good courage, for his God would not forsake him; and the priests and Levites, cunning workmen, and the princes, together with the whole people, would willingly support him. With the encouragement, 1-Chronicles 28:20, cf. 1-Chronicles 22:13; and with the promise, 1-Chronicles 28:20, cf. Deuteronomy 31:6, Deuteronomy 31:8; Joshua 1:5. אלהי, my God, says David, ut in mentem ei revocet, quomodo multis in periculis servatus sit (Lav.). עבודה כּל־מלאכת, all the work-business, i.e., all the labour necessary for the building of the house of God.
My God - Whom I have chosen and served, who has all along been with me and prospered me, I recommend thee to him; he will be with thee, to strengthen, direct and prosper thee. The God that owned our fathers, and carried them thro' the services of their day, will, in like manner, if we are faithful to him, go along with us in our day, and will never fail us. God never leaves any, unless they first leave him.
*More commentary available at chapter level.