David who was thirsty exclaimed he longed for water after being pinned down,his warriors heard that and fought to get water to David,but what did he do when they offered it to him?
He refused to drink it. ---Poured it out on the ground.
Why did he do this?
Because his (David's) men could easily have been killed. The water, in this instance, represented their lives, which they risked in obtaining it. David even compares it to drinking their blood.
I'm not sure how this supports the JW position on blood. If anything, it seems to directly contradict it.
David refused to place a higher value on water than human life
Aren't you doing exactly the opposite of what David did when you place a higher value on blood, which (in the context of death) represents life than you place on life itself?