*Minor differences ignored. Grouped by changes, with first version listed as example.
David the seventh - Jesse had eight sons, of whom David was the youngest 1-Samuel 16:10-11; 1-Samuel 17:12. Probably one of the sons shown to Samuel at Bethlehem did not grow up.
CHILDREN OF JESSE. (1-Chronicles 2:13-17)
David the seventh--As it appears (1-Samuel 16:10; 1-Samuel 17:12) that Jesse had eight sons, the presumption is from David being mentioned here as the seventh son of his father, that one of them had died at an early age, without leaving issue.
Seventh - He had eight sons, 1-Samuel 16:10, but probably one of them died presently after that time.
*More commentary available at chapter level.