en_tn/2sa/21/17.md

Abishai son of Zeruiah

Abishai and Zeruiah are names of men. See how you translated these names in 2 Samuel 2:18.

you do not put out the lamp of Israel

The "lamp of Israel" is a metaphor that refers to David's leadership and the idea that if David were to die, the people of Israel would have no clear direction. (See: rc://en/ta/man/translate/figs-metaphor)