A.T. Robertson Commentary Acts 7:2

"And he said, Brethren and fathers, hearken: The God of glory appeared unto our father Abraham, when he was in Mesopotamia, before he dwelt in Haran," — Acts 7:2 (ASV)

Brethren and fathers (ανδρες αδελφο κα πατερες). The spectators (brethren) and members of the Sanhedrin (fathers) as Paul in Ac 22:1.

Hearken (ακουσατε). First aorist (ingressive) active imperative, Give me your attention now.

The God of glory (Hο θεος της δοξης). The God characterized by glory (genitive case, genus or kind) as seen in the Shekinah, the visible radiance of God. Jesus is also called "the Glory"=the Shekinah in Jas 2:1. Cf. Exodus 25:22; 40:34; Leviticus 9:6; Hebrews 9:5. By these words Stephen refutes the charge of blasphemy against God in Ac 6:11.

Appeared (ωφθη). First aorist passive indicative of οραω. See on Lu 23:43. Before there was temple or tabernacle and away over in Mesopotamia (Ur of the Chaldees, Genesis 11:31), even before (πριν η with the infinitive) he dwelt in Haran (Χαρραν, or Carrae not far from Edessa, where Crassus met death after his defeat by the Parthians B.C. 53).