But he looking steadfastly up to heaven, saw the glory of God — Doubtless he saw such a glorious representation, God miraculously operating on his imagination, as on Ezekiel's, when he sat in his house at Babylon, and saw Jerusalem, and seemed to himself transported thither, Ezekiel 8:1-4. And probably other martyrs, when called to suffer the last extremity, have had extraordinary assistance of some similar kind.
Related Commentaries of Acts 7:55
Acts 7:55
55 But he, being full of the Holy Ghost, looked up stedfastly into heaven, and saw the glory of God, and Jesus standing on the right hand of God,