John Gill Commentary Acts 7:46

"who found favor in the sight of God, and asked to find a habitation for the God of Jacob." — Acts 7:46 (ASV)

Who found favour before God
That is, David, who had an interest in the free favour and love of God, was chosen of God, a man after his own heart, and raised up to do his will; and who had the grace of God implanted in him, and was acceptable, and well pleasing to God through Christ; the same is said of Noah, (Genesis 6:8)

and desired to find a tabernacle for the God of Jacob ;
from whom the Israelites descended: David having a deep sense of the love of God to him, and the grace of God wrought in his heart, was exceeding desirous of finding a place for the building of an house, or fixed habitation for God; for there was a tabernacle already, which had been from the time of Moses, and which the children of Israel brought with them into Canaan, and was moved from place to place; sometimes it was at Gilgal, sometimes at Shiloh, and then it was at Nob, and Gibeah, and at length it was brought by David into his own city;

but he wanted to build a settled and stable house for the Lord, of which there was a hint given that the Lord would choose a place to put his name in, (Deuteronomy 16:2) but it seems, where that was to be was not known; and therefore David very anxiously sought after it; the reference is had to (Psalms 132:3–5) where David determines not to go to his house, nor up to his bed, nor give sleep, to his eyes, nor slumber to his eyelids, till he had found out a place for the habitation of the God of Jacob.