John Chrysostom — as excerpted in the Catena Aurea on Matthew 16:26-28

“He said not in such glory as is that of the Father, that you might not suppose a difference of glory, but He says, The glory of the Father, that it might be shewn to be the same glory. But if the glory is one, it is evident that the substance is one. What then fearest thou, Peter, hearing of death? For then shalt thou see Me in glory. But if I be in glory, so also shall ye be. But in making mention of His glory, He mingleth therewith things terrible, bringing forward the judgment, as it follows, And then shall he render to each man according to his works.”