Isaiah 11:6 - Matthew Poole's English Annotations on the Holy Bible

The wolf also shall dwell with the lamb, & c.; the creatures shall be restored to that state of innocency in which they were before the fall of man. But this is not to be understood literally, which is a gross and vain conceit of some Jews; but spiritually and metaphorically, as is evident. And the sense of the metaphor is this, Men of fierce, and cruel, and ungovernable dispositions, shall be so transformed by the preaching of the gospel, and by the grace of Christ, that they shall become most humble, and gentle, and tractable, and shall no more vex and persecute those meek and poor ones mentioned Isaiah 11:4, but shall become such as they; of which we have instances in Saul being made a Paul, and in the rugged jailer, Ac 16, and in innumerable others. But how can this be applied to Hezekiah with any colour? A little child shall lead them; they will submit their proud and rebellious wills to the conduct and command of the meanest persons that speak to them in Christ's name.