Isaiah 40:3 - Wesley's Explanatory Notes

The voice — An abrupt speech. Methinks I hear a voice. Wilderness — This immediately relates to the deliverance of the Jews out of Babylon, and smoothing their passage from thence to Judea, which lay through a great wilderness; but principally to their redemption by the Messiah, whose coming was ushered in by the cry of John the baptist, in the wilderness. Prepare ye the way — You to whom this work belongs. He alludes to the custom of princes who send pioneers before them to prepare the way through which they are to pass. The meaning is, God shall by his spirit so dispose mens hearts, and by his providence so order the affairs of the world, as to make way for the accomplishment of his promise. This was eminently fulfilled, when Christ, who was, and is God, blessed for ever, came into the world in a visible manner.