'Turn' in the Bible

Listen carefully, I will throw her on a bed of sickness, and those who commit adultery with her [I will bring] into great anguish, unless they repent of her deeds.

These [two witnesses] have the power [from God] to shut up the sky, so that no rain will fall during the days of their prophesying [regarding judgment and salvation]; and they have power over the waters (seas, rivers) to turn them into blood, and to strike the earth with every [kind of] plague, as often as they wish.