Cry aloud, spare not, lift up thy voice like a trumpet, and shew my people their transgression, and the house of Jacob their sins.
When our Lord Jesus promised to send the Comforter he added, When he shall come he shall convince (Joh 16:7, Joh 16:8); for conviction must prepare for comfort, and must also separate between the precious and the vile, and mark out those to whom comfort does not belong.
Commenting on Isaiah 58:1-2
Cry aloud, spare not, lift up thy voice like a trumpet,.... These words are directed to the prophet; and so the Targum expresses it, "O prophet, cry with thy throat;'' and so it is in the original, "cry with the throat" (d), which is an instrument of speech; and it denotes a loud, strong, vehement cry, when a man exerts his voice, and as it...
Cry aloud, spare not, lift up thy voice like a trumpet, and show my people their transgression, and the house of Jacob their sins. (a) The Lord thus speaks to the prophet willing him to use all diligence and severity to rebuke the hypocrites.