John Gill Commentary 1 Chronicles 28:5

"And of all my sons (for Jehovah hath given me many sons), he hath chosen Solomon my son to sit upon the throne of the kingdom of Jehovah over Israel." — 1 Chronicles 28:5 (ASV)

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.