{7} Jesus answered and said, This voice came not because of me, but for your sakes.

(7) Christ foretells to the deaf the manner of his death, the overcoming of the devil and the world, and in conclusion his triumph.

People's New Testament

12:30 This voice came not because of me. He had already won the victory before the voice came. It was rather to confirm the faith of his disciples, who still stumbled over the prospect of his death.

Jamieson-Fausset-Brown Bible Commentary

30. Jesus . said, This voice came not because of me, but for your sakes-that is, probably, to correct the unfavorable impressions which His momentary agitation and mysterious prayer for deliverance may have produced on the by-standers.

Matthew Henry's Concise Commentary

12:27-33 The sin of our souls was the troubled of Christ's soul, when he undertook to redeem and save us, and to make his soul an offering for our sin. Christ was willing to suffer, yet prayed to be saved from suffering. Prayer against trouble may well agree with patience under it, and submission to the will of God in it. Our Lord Jesus undertook to satisfy God's injured honour, and he did it by humbling himself. The voice of the Father from heaven, which had declared him to be his beloved Son, at his baptism, and when he was transfigured, was heard proclaiming that He had both glorified his name, and would glorify it. Christ, reconciling the world to God by the merit of his death, broke the power of death, and cast out Satan as a destroyer. Christ, bringing the world to God by the doctrine of his cross, broke the power of sin, and cast out Satan as a deceiver. The soul that was at a distance from Christ, is brought to love him and trust him. Jesus was now going to heaven, and he would draw men's hearts to him thither. There is power in the death of Christ to draw souls to him. We have heard from the gospel that which exalts free grace, and we have heard also that which enjoins duty; we must from the heart embrace both, and not separate them.