en_tn_condensed/rev/11/06.md

to close up the sky so that no rain will fall

"to keep rain from falling from the sky"

the days that they prophesy

"the time that they prophesy." The word "days" here can refer to weeks, months, or years.

to turn

"to change"

to strike the earth with every kind of plague

"to cause all kinds of trouble to occur on earth"