John Wesley on Isaiah 52:14

Astonished - At his humiliation. Thee - At thee, O my servant. His form - Christ, in respect of his birth, breeding, and manner of life, was most obscure and contemptible. His countenance also was so marred with frequent watchings, and fastings, and troubles, that he was thought to be near fifty years old when he was but about thirty, John 8:57, and was farther spoiled with buffetings, and crowning with thorns, and other cruel and despiteful usages.