As Stephen stood before his judges, the light of the glory of God rested upon his countenance. “And all that sat in the council, looking steadfastly on him, saw his face as it had been the face of an angel.” When called upon to answer to the charges brought against him, he began at Moses and the prophets and reviewed the history of the children of Israel and the dealings of God with them and showed how Christ had been foretold in prophecy. He referred to the history of the temple and declared that God dwelleth not in temples made with hands. The Jews worshiped the temple and were filled with greater indignation at anything spoken against that building than if it had been spoken against God. As Stephen spoke of Christ and referred to the temple, he saw that the people were rejecting his words; and he fearlessly rebuked them: “Ye stiffnecked and uncircumcised in heart and ears, ye do always resist the Holy Ghost.” While they observed the outward ordinances of their religion, their hearts…
"And all that sat in the council, looking stedfastly on him, saw his face as it had been the face of an angel."
EGW directly quotes Acts 6:15.