Following are a number of back-translations of Revelation 16:6:

• Uma: “For those people in the world there killed your (sing.) followers, they spilled/poured-out the blood of your (sing.) many prophets. That is why now you (sing.) change the water to become blood,you (sing.) give-it-to-them-to-drink. How appropriate that is!'” (Source: Uma Back Translation)
• Yakan: “Because your people and the people who carried your message were killed by the people in the world and their blood was spilled by them, therefore now you give them blood to drink. That is matching/right as a reward/repayment for them.'” (Source: Yakan Back Translation)
• Western Bukidnon Manobo: “For they killed those who believe in You and the prophets long ago. So now You are making them drink blood for it is a proper revenge on them!'” (Source: Western Bukidnon Manobo Back Translation)
• Kankanaey: “Because the ones you (sing.) are punishing, they killed your (sing.) people as well as the prophets you (sing.) repeatedly-sent and-so their blood flowed-out, and now, blood is what you are-causing-them -to-drink. They indeed deserve it (lit. It is indeed their recompense)!'” (Source: Kankanaey Back Translation)
• Tagbanwa: “To the people who caused to be shed the blood of your people and the blood also of your prophets, to them you have given blood for them to drink. That really is fitting for them.'” (Source: Tagbanwa Back Translation)
• Tenango Otomi: “Because concerning these you are now punishing, they are the ones who killed the people who are in your hand and they have killed the spokesmen who spoke for you. Therefore you give them their payment now, causing them to drink the water turned to blood.'” (Source: Tenango Otomi Back Translation)