Charles Ellicott Commentary 1 Chronicles 23:1

"Now David was old and full of days; and he made Solomon his son king over Israel." — 1 Chronicles 23:1 (ASV)

So when David was old and full of days. —Literally, Now David had become old and satisfied with days. (Job 42:17; where both terms, which are verbs here, appear as adjectives.) Perhaps our pointing is wrong. The expression “satisfied with days” reminds us of Horace, who describes the philosopher as departing this life like a satisfied guest (ut conviva satur, etc.).

He made Solomon his son king. —Hebrew, and he made, etc. This short statement is all that the chronicler has chosen to repeat from 1 Kings 1, a narrative intimately connected with David’s family affairs, with which he is not concerned to deal. (Compare to the introductory remarks for 1 Chronicles 20.)