10. at--Greek, "before." John's intending to worship the angel here, as in Re 22:8, on having revealed to him the glory of the new Jerusalem, is the involuntary impulse of adoring joy at so blessed a prospect. It forms a marked contrast to the sorrowful wonder with which he had looked on the Church in her apostasy as the harlot (Re 17:6). It exemplifies the corrupt tendencies of our fallen nature that even John, an apostle, should have all but fallen into "voluntary humility and worshipping of angels," which Paul warns us against.
      and of thy brethren--that is, a fellow servant of thy brethren.
      have the testimony of Jesus--(See on Re 12:17).
      the testimony of--that is, respecting Jesus.
      is the spirit of prophecy--is the result of the same spirit of prophecy in you as in myself. We angels, and you apostles, all alike have the testimony of (bear testimony concerning) Jesus by the operation of one and the same Spirit, who enables me to show you these revelations and enables you to record them: wherefore we are fellow servants, not I your lord to be worshipped by you. Compare Re 22:9, "I am fellow servant of thee and of thy brethren the prophets"; whence the "FOR the testimony," &c., here, may be explained as giving the reason for his adding "and (fellow servant) of thy brethren that have the testimony of Jesus." I mean, of the prophets; "for it is of Jesus that thy brethren, the prophets, testify by the Spirit in them." A clear condemnation of Romish invocation of saints as if they were our superiors to be adored.

JFB.