American Standard Version
These have the power to shut the heaven, that it rain not during the days of their prophecy: and they have power over the waters to turn them into blood, and to smite the earth with every plague, as often as they shall desire.

Berean Study Bible
These witnesses have power to shut the sky so that no rain will fall during the days of their prophecy, and power to turn the waters into blood and to strike the earth with every kind of plague as often as they wish.

Douay-Rheims Bible
These have power to shut heaven, that it rain not in the days of their prophecy: and they have power over waters to turn them into blood, and to strike the earth with all plagues as often as they will.

English Revised Version
These have the power to shut the heaven, that it rain not during the days of their prophecy: and they have power over the waters to turn them into blood, and to smite the earth with every plague, as often as they shall desire.

King James Bible
These have power to shut heaven, that it rain not in the days of their prophecy: and have power over waters to turn them to blood, and to smite the earth with all plagues, as often as they will.

World English Bible
These have the power to shut up the sky, that it may not rain during the days of their prophecy. They have power over the waters, to turn them into blood, and to strike the earth with every plague, as often as they desire.

Young's Literal Translation
These have authority to shut the heaven, that it may not rain rain in the days of their prophecy, and authority they have over the waters to turn them to blood, and to smite the land with every plague, as often as they may will.

Revelation 11:6 Additional Translations ...