From the Great Council of Moscow, 1666-67:
The Holy Spirit is not a dove according to essence, but God by essence, and no one has ever seen God, as St John the Evangelist and Theologian witnesses. Only at the Jordan, at the holy baptism of Christ, did the Holy Spirit appear in the form of a dove, and for this reason it is permissible to paint an image of the Holy Spirit in the form of a dove for this icon. In any other place, it is not permitted to paint the Holy Spirit in the form of a dove. Also He appeared on Mt. Tabor as a cloud and sometimes in other forms. In addition, the name Sabaoth is applied not to the Father but only to the Holy Trinity. According to Dionysius, Sabaoth is translated from Hebrew, the language of the Jews, as the “the Lord of Hosts,” and thus “Lord of Hosts” is the Holy Trinity: Father, Son, and Holy Spirit.
Also, the Prophet Daniel says, “I have seen the Ancient of Days sitting on the judgment seat,” and this is applied not to the Father, but to the Son, because He will be judging every nation with His fearful judgment at his Second Coming. Also some write Sabaoth on the icons of the Holy Annunciation as He is breathing from His mouth, and this breath is going to the womb of the most holy Mother of God. Who has ever seen such a thing or what holy scripture witnesses to that? Where is it taken from? It is very clear that this practice and similar practices come from people who possess foolish wisdom or, stated more properly, are crazy. On the basis of the preceding, we order from henceforth that this inappropriate and foolish practice stop.
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