Expositor's Bible Commentary Commentary Acts 4:6

"and Annas the high priest [was there], and Caiaphas, and John, and Alexander, and as many as were of the kindred of the high priest." — Acts 4:6 (ASV)

The early opposition to Christianity arose principally from among the Sadducees, for Luke stresses that the Sadducean element was especially well represented in this first trial of the apostles: “Annas the high priest was there, and so were Caiaphas, John, Alexander and the other men of the high priest’s family” (see comment on Jn 18:12–14). Just who John and Alexander were, we do not know, though possibly the first was Annas’s son Jonathan, who replaced Caiaphas in A. D. 36.