Surely you and these people with you will wear yourselves out, because the task is too heavy for you. You cannot handle it alone.
KJV
Thou wilt surely wear away, both thou, and this people that [is] with thee: for this thing [is] too heavy for thee; thou art not able to perform it thyself alone.
ASV
Thou wilt surely wear away, both thou, and this people that is with thee: for the thing is too heavy for thee; thou art not able to perform it thyself alone.