From Handbook for Church Servers,
2nd ed., 1274 pp., Kharkov, 1900, pp. 608-613.
On the tenth day after the Ascension of Jesus Christ during the Jewish feast of Pentecost, at the third hour, but according to our reckoning at nine o'clock in the morning, when people usually go to the temple both for offering up a sacrifice and prayer [1] all the disciples were assembled in Jerusalem, in the upper room (Acts 1:13), which was "on Mount Zion", "and suddenly there came a sound from heaven, as of a rushing mighty wind," (as though from an unusually strong wind)." Actually there was no wind rustling, but the noise was similar as if it were from the strength of a wind, but without the wind." This noise "filled the whole house where they were sitting", - not only of the apostles, but, according to the commentary of St. John Chrysostom, even other believers in Christ (Acts 1:16). In that instant in the middle of the house in the air appeared many tongues as of fire, being carried above the heads of the disciples, dropped down and rested on them. They were not really fiery tongues, but were "as if of fire", i.e. it only had the appearance of fire; they shone only, but did not burn. Directly behind these, or even together with these external appearances, the event followed the internal, completing in the souls of the believers: "all were filled with the Holy Spirit" [2].