Here the "blood" of the prophets and the servants refers to their deaths. Alternate translation: "I may avenge the deaths of my servants the prophets and all the servants of Yahweh" or "so that I may punish them for murdering my servants the prophets and all the servants of Yahweh" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This can be stated in active form. Alternate translation: "whom Jezebel commanded her servants to murder" or "whose deaths were commanded by Jezebel" (See: [[rc://en/ta/man/translate/figs-activepassive]])
This means that Jezebel commanded the people to be killed. Alternate translation: "by an order from Jezebel" or "by Jezebel's command" (See: [[rc://en/ta/man/translate/figs-metonymy]])