Then the people rejoiced, because they offered willingly, because with a perfect heart they offered willingly to Yahweh: and David the king also rejoiced with great joy.
In addition to the money and materials he had already given for the project (see 22:14), David gave a lavish offering from his own personal funds. His example prompted the people to make similarly generous offerings (29:1-9). The joyful response from the people brought from David an outburst of magnificent praise to God. He gladly acknowledged that everything that people possess comes from God; therefore, in making offerings to him, the Israelites had only given back what he had already given them. They had done this joyfully and willingly, and David prayed that they would maintain such devotion to God always (10-20).Next day the people joined in a great festival and swore allegiance to Solomon as their new king (21-25). The writer will now continue with the story of Solomon, but before doing so he gives a brief summary of the reign of David (26-30).