Wholehearted Devotion

1 Chronicles 29:19
And give my son Solomon the wholehearted devotion to keep your commands, requirements and decrees and to do everything to build the palatial structure for which I have provided."

Three verses in a row on hearts. David's prayer continues.
Just a thought, maybe that is why David is the man after God's heart. Maybe he had unique understanding of the heart's importance.
I like that David prayed that Solomon would build the Temple--the palatial structure for which David had provided. But first he prayed for Solomon's heart.

Loyal Hearts

1 Chronicles 29:18
O LORD, God of our fathers Abraham, Isaac and Israel, keep this desire in the hearts of your people forever, and keep their hearts loyal to you.

This chapter may have more hearts in it than any so far. This follows the last verse, which ended with a reference to how willingly the people had given. David asks of God that the desire to give would remain alive in their hearts, as well as loyalty to God.
Verse 14, like this one, looks to God as the source of all that is in our hearts and in our hands. "Everything comes from you, and we have given you only what comes from your hand."
God, please give me what I need. I don't even know what I need. Give me the right desires.

Heart of Integrity

1 Chronicles 29:17
I know, my God, that you test the heart and are pleased with integrity. All these things have I given willingly and with honest intent. And now I have seen with joy how willingly your people who are here have given to you.

Now David speaks to God. The one line is a volume.
1. God tests the heart.
2. Integrity is the right answer.
This is so very much like 1 Chronicles 28:9. I am glad for an opportunity to renew and replant that truth. God tests the heart. I tolerate so many weeds. I want my heart to be pure.