en_tn/2sa/12/27.md

So Joab sent messengers to David and said

"So Joab sent messengers to David to say to him"

have taken the city's water supply

"Taking" a place or landmark means to take control of it. AT: "have taken control of the city's water supply" (See: rc://en/ta/man/translate/figs-metaphor)

I have fought ... I have taken ... if I take

Here Joab speaks of himself when he is actually referring to himself and his soldiers. AT: "My soldiers and I have fought ... my soldier and I have taken ... if my soldiers and I take" (See: rc://en/ta/man/translate/figs-synecdoche)