2 Now I have prepared with all my might for the house of my God the gold for the [things of] gold, and the silver for the [things of] silver, and the brass for the [things of] brass, the iron for the [things of] iron, and wood for the [things of] wood; onyx stones, and [stones] to be set, stones for inlaid work, and of divers colors, and all manner of precious stones, and marble stones in abundance. 3 Moreover also, because I have set my affection on the house of my God, seeing that I have a treasure of mine own of gold and silver, I give it unto the house of my God, over and above all that I have prepared for the holy house, 4 even three thousand talents of gold, of the gold of Ophir, and seven thousand talents of refined silver, wherewith to overlay the walls of the houses; 5 of gold for the [things of] gold, and of silver for the [things of] silver, and for all manner of work [to be made] by the hands of artificers. Who then offereth willingly to consecrate himself this day unto Jehovah? 6 Then the princes of the fathers' [houses], and the princes of the tribes of Israel, and the captains of thousands and of hundreds, with the rulers over the king's work, offered willingly; 7 and they gave for the service of the house of God of gold five thousand talents and ten thousand darics, and of silver ten thousand talents, and of brass eighteen thousand talents, and of iron a hundred thousand talents.

Matthew Henry's Commentary on 1 Chronicles 29:2-7

Commentary on 1 Chronicles 29:1-9

(Read 1 Chronicles 29:1-9)

What is done in works of piety and charity, should be done willingly, not by constraint; for God loves a cheerful giver. David set a good example. This David offered, not from constraint, or for show; but because he had set his affection to the house of God, and thought he could never do enough towards promoting that good work. Those who would draw others to good, must lead the way themselves.