Neither did his brethren believe in him - They did not receive him as the promised Messiah; but, having seen so many of his miracles, they could not but consider him as an eminent prophet. They supposed that, if he were the Messiah, he would wish to manifest himself as such to the world; and, because he did not do so, they did not believe that he was the salvation of Israel.

For neither did his brethren believe in him. At first they might take to him, and embrace him as the Messiah, and expect he would set up a temporal kingdom; in which they might hope, on account of their relation to him, according to the flesh to enjoy great honours and privileges; but finding that he was not inclined to anything of that nature, and talked in a quite different way, they grew sick of him, and rejected him, as the Messiah; so, little regard is to be had, or confidence placed, in carnal descent from, or alliance to the best of men; as to Abraham, or any other true believer, if they have not the same grace, or the same faith as such have; and which comes not by blood, or natural generation, but by the free favour of God; for it matters not, if men have known Christ, or have been allied to him after the flesh, unless they are new creatures in him; they may be the one, and not the other; even the carnal brethren of Christ, and yet not believers in him; and it is only such who are so in a spiritual sense, that are regarded by him, Matthew 12:49.

Neither (οὐδὲ)

Better, as Rev., not even.

Did believe (ἐπίστευον)

The imperfect, were believing; referring not to a single act of faith, but to faith as habitual and controlling.

For neither did his {b} brethren believe in him.

(b) His relatives: for the Hebrews used to speak in this way.

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.