luke 1:76 And thou, child, shalt be called the prophet of the Highest: for thou shalt go before the face of the Lord to prepare his ways; - Free Bible Online

      76-79. Here are the dying echoes of this song; and very beautiful are these closing notes--like the setting sun, shorn indeed of its noontide radiance, but skirting the horizon with a wavy and quivering light--as of molten gold--on which the eye delights to gaze, till it disappears from the view. The song passes not here from Christ to John, but only from Christ direct to Christ as heralded by His forerunner.
      thou child--not "my son"--this child's relation to himself being lost in his relation to a Greater than either.
      prophet of the Highest; for thou shalt go before him--that is, "the Highest." As "the Most High" is an epithet in Scripture only of the supreme God, it is inconceivable that inspiration should apply this term, as here undeniably, to Christ, unless He were "God over all blessed for ever" (Ro 9:5).

JFB.