en_tn/1ki/15/04.md

gave him a lamp in Jerusalem

The word "lamp" here represents a descendant who would be king as David was. AT: "gave David a descendant to rule in Jerusalem" (See: rc://en/ta/man/translate/figs-metaphor)

by raising up his son after him

"by raising up Abijah's son after him" or "by giving Abijah a son"