220
A.D.
Tertullian
Patristic
c. A.D. 150–220
“He is seen by Stephen, at his martyrdom by stoning, still sitting at the right hand of God [Acts 7:55] where He will continue to sit, until the Father shall make His enemies His footstool. [Hebrews 10:12-13] He will come again on the clouds of heaven, just as He appeared when He ascended into heaven. [Acts 1:11]”
“"He sitteth at the Father's right hand " -not the Father at His own. He is seen by Stephen, at his martyrdom by stoning, still sitting at the right hand of God where He will continue to sit, until the Father shall make His enemies His footstool.”