New International Version
Disaster will come upon you, and you will not know how to conjure it away. A calamity will fall upon you that you cannot ward off with a ransom; a catastrophe you cannot foresee will suddenly come upon you.

American Standard Version
Therefore shall evil come upon thee; thou shalt not know the dawning thereof: and mischief shall fall upon thee; thou shalt not be able to put it away: and desolation shall come upon thee suddenly, which thou knowest not.

Berean Study Bible
But disaster will come upon you; you will not know how to charm it away. A calamity will befall you that you will be unable to ward off. Devastation will happen to you suddenly and unexpectedly.

Douay-Rheims Bible
Evil shall come upon thee, and then shalt not know the rising thereof: and calamity shall fall violently upon thee, which thou canst not keep off: misery shall come upon thee suddenly, which thou shalt not know.

English Revised Version
Therefore shall evil come upon thee; thou shalt not know the dawning thereof: and mischief shall fall upon thee; thou shalt not be able to put it away: and desolation shall come upon thee suddenly, which thou knowest not.

King James Bible
Therefore shall evil come upon thee; thou shalt not know from whence it riseth: and mischief shall fall upon thee; thou shalt not be able to put it off: and desolation shall come upon thee suddenly, which thou shalt not know.

World English Bible
Therefore evil will come on you; you won't know when it dawns: and mischief will fall on you; you will not be able to put it away: and desolation shall come on you suddenly, which you don't know.

Young's Literal Translation
And come in on thee hath evil, Thou knowest not its rising, And fall on thee doth mischief, Thou art not able to pacify it, And come on thee suddenly doth desolation, Thou knowest not.

Isaiah 47:11 Additional Translations ...