{For some time now}, even when Saul was king, you were {the one who led the army of Israel in battle}. And Yahweh your God said to you, 'You will shepherd my people Israel and will be leader over my people Israel.'"

And it happened [that] {in the spring time of year}, the time [when] kings go out [to battle], Joab led the troops of the army and destroyed the land of the {Ammonites}. And he came and besieged Rabbah, but David remained in Jerusalem. And Joab struck Rabbah and destroyed it.