11 “Appoint me a law, O Lord, in Your way”. For me then who am setting out toward You, and commenting so great a profession, of arriving at wisdom, from fear, appoint, O Lord, a law in Your way, lest in my wandering Your rule abandon me. “And direct me in the right path because of mine enemies.” And direct me in the right way of its straits. For it is not enough to begin, since enemies cease not until the end is attained.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)