Thou shalt not seek their peace nor their prosperity all thy days for ever.
You shall not seek their peace or their prosperity all your days forever.
So don’t be concerned with their health and well-being as long as you live.
You shall not make peace with them, nor shall you seek their prosperity, throughout all the days of your life forever.
Thou shalt not make peace with them: neither shalt thou seek their prosperity all the days of thy life for ever.