7:4 If thou do these things. These brethren still were doubters. He differed so from their idea of the Christ that they could not understand him, and they hoped that at Jerusalem he would be made manifest. They afterwards became believers.
7:4 For no man doth any thing - Of this kind, in secret; but rather desireth to be of public use. If thou really dost these things - These miracles which are reported; show thyself to the world - To all men.
7:1-13 The brethren or kinsmen of Jesus were disgusted, when they found there was no prospect of worldly advantages from him. Ungodly men sometimes undertake to counsel those employed in the work of God; but they only advise what appears likely to promote present advantages. The people differed about his doctrine and miracles, while those who favoured him, dared not openly to avow their sentiments. Those who count the preachers of the gospel to be deceivers, speak out, while many who favour them, fear to get reproach by avowing regard for them.