John Gill Commentary 1 Chronicles 28

And David assembled all the princes of Israel, the princes
of the tribes
Whose names are given in (1 Chronicles 27:16–22)

and the captains of the companies that ministered to the king by
course ;
monthly, each having 24,000 men under him, whose names are expressed, (1 Chronicles 27:2–15)

and the captains over the thousands ;
of which there were twenty four in a course, at the head of each 1000, under the chief captain:

and captains over the hundreds :
centurions under the second captains:

and the stewards over all the substance and possession of the king,
and of his sons ;
whose names may be read in (1 Chronicles 27:25–31)

with the officers :
the courtiers:

and with the mighty men, and with all the valiant men ;
both men of valour, and of wealth and riches: these David

assembled unto Jerusalem ;
the metropolis of the kingdoms and where his court and palace were.

Then David the king stood up upon his feet
Rose from the bed or couch on which he lay, as Kimchi thinks, being somewhat recovered of his paralytic disorder, and being willing to exert himself on this occasion; or he rose up from the seat or throne, on which he before sat, in honour to this august assembly before him, and that he might be the more easily heard;

for which reason we are told ^F18 it was a custom with the ancients even for kings to stand up when they had a number of people about them they spoke to; and if anyone sat it was reckoned a new and strange thing; so Agamemnon, when wounded, did not speak sitting, until he had made an excuse for it:

and said, hear me, my brethren, and my people ;
having something of moment and importance to say to them, and which required their diligent attention; and though they were his subjects, he calls them his brethren, being of the same nation and religion, and to show his modesty and humility; in which he was a type of Christ, the King of kings, see (Hebrews 2:11)

as for me, I had it in my heart to build an house of rest for the ark
of the covenant of the Lord ;
where it might abide, and not be removed from place to place; the same he has told Solomon, (1 Chronicles 22:7)

and for the footstool of our God ;
or "even for it", for the ark is meant, which is so called, (Psalms 99:5) (Psalms 132:7Psalms 132:8) for as the Lord sat between the cherubim over the mercy seat, the lid of the ark, it was, speaking after the manner of men, a footstool to him:

and had made ready for the building ;
prepared materials for it; see (1 Chronicles 22:4 1 Chronicles 22:14–16) (29:2-5) .

FOOTNOTES:

• F18: Eustathius in Homer. Iliald. 1. p. 46. Vid, Iliad. 19. ver. 77, 79.

But God said to me, you shall not build an house for my
name
This he said by Nathan the prophet, (2 Samuel 7:5)

because you have been a man of war, and have shed blood :
see (1 Chronicles 22:8) .

Howbeit, the Lord God of Israel chose me before all the house
of my father to be king over Israel for ever
Passing by all his brethren who were elder than he, he pitched upon him, and ordered him to be anointed king of Israel, see (1 Samuel 16:10 1 Samuel 16:12), and that for ever, for a long time, as long as he lived; or rather in his posterity for many years to come, and best of all in his antitype Christ, the son of David, see (Luke 1:32Luke 1:33)

for he has chosen Judah to be the ruler ;
the tribe of Judah to be the seat of government, and one out of that tribe to be the chief ruler, see (1 Chronicles 5:2) (Genesis 49:10)

and of the house of Judah, the house of my father ;
out of that tribe he chose his father's family, to take from thence one to be king of Israel:

and among the sons of my father he liked me to make me king over all
Israel ;
though the youngest of them, (1 Samuel 16:11), this was his will and pleasure.

And of all my sons, for the Lord has given me many sons
Whose names, and the order of their birth, may be read in (1 Chronicles 3:1–9)

he has chosen Solomon my son to sit upon the throne of the kingdom of
the Lord over Israel ;
to be his successor in it: this he says to observe to them, that this was not merely his own will and choice, nor the fruit and effect of a fond affection to Solomon; nor was it barely in pursuance of a promise made to Bathsheba, she had obtained of him; but it was according to the will and appointment of God, and therefore to be the more regarded.