Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the LORD thy God is with thee whithersoever thou goest.
Haven't I commanded you? Be strong and courageous. Don't be afraid, neither be dismayed: for Yahweh your God is with you wherever you go."
A charge given to a new leader on the edge of the unknown — often carried by anyone starting something daunting.