International Standard Version "Be strong and courageous, because you'll be leading this people to inherit the land that I promised to give their ancestors.
American Standard Version Be strong and of good courage; for thou shalt cause this people to inherit the land which I sware unto their fathers to give them.
Young's Literal Translation be strong and courageous, for thou -- thou dost cause this people to inherit the land which I have sworn to their fathers to give to them.