What does 2 Samuel 23:17 mean?

He said, 'Lord, I can't drink this. It's like drinking the blood of the men who risked their lives for me.' So he wouldn't drink it. These are the kinds of things the Three did. 2 Samuel 23:17 - Modern Text Bible

(David saw the water as representing the lives of his men, so he honored their sacrifice by giving it to God.)