American Standard Version
For Egypt helpeth in vain, and to no purpose: therefore have I called her Rahab that sitteth still.

Berean Study Bible
Egypt’s help is futile and empty; therefore I have called her Rahab Who Sits Still.

Douay-Rheims Bible
For Egypt shall help in vain, and to no purpose: therefore have I cried concerning this: It is pride only, sit still.

English Revised Version
For Egypt helpeth in vain, and to no purpose: therefore have I called her Rahab that sitteth still.

King James Bible
For the Egyptians shall help in vain, and to no purpose: therefore have I cried concerning this, Their strength is to sit still.

World English Bible
For Egypt helps in vain, and to no purpose; therefore have I called her Rahab who sits still.

Young's Literal Translation
Yea, Egyptians are vanity, and in vain do help, Therefore I have cried concerning this: 'Their strength is to sit still.'

Isaiah 30:7 Additional Translations ...