“‘And my Father will love him, and we will come to him and make our home with him’ (John 14:23). My friends, consider the greatness of this solemn feast that commemorates God's coming as a guest into our hearts! If some rich and influential friend were to come to your home, you would promptly put it all in order for fear something there might offend your friend's eyes when he came in. Let all of us then who are preparing our inner homes for God cleanse them of anything our wrongdoing has brought into them.” —St. Gregory the Great, on Pentecost in Be Friends of God

“If from one burning lamp someone lights another, then another from that one, and so on in succession, he has light continuously. In the same way, through the Apostles ordaining their successors, and these successors ordaining others, and so on, the grace of the Holy Spirit is handed down through all generations and enlightens all who obey their shepherds and teachers.” —St. Gregory Palamas, On how the Holy Spirit was manifested and shared out at Pentecost