'Left' in the Bible

Only take heart and be very strong; take care to do all the law which Moses my servant gave you, not turning from it to the right hand or to the left, so that you may do well in all your undertakings.

Turning to the east to Beth-dagon and stretching to Zebulun and the valley of Iphtah-el as far as Beth-emek and Neiel to the north; on the left it goes as far as Cabul

So be very strong to keep and do whatever is recorded in the book of the law of Moses, not turning away from it to the right or to the left;