What prayers are recited while pouring the Myron oil (Chrism) into the water?

At the end of the prayers of consecrating the water, the priest pours the Myron oil three times into the water, in the form of the cross, to consecrate the water, saying, “In the name of the Father, the Son, and the Holy Spirit. Blessed be God the Father, the Pantocrator. Amen. Blessed be His Only Begotten Son, Jesus Christ. Amen. Blessed be the Holy Spirit, the Paraclete. Amen.”

Then he stirs the water while reciting some verses from the book of Psalms: “The voice of the Lord is upon the waters, the God of glory thundered; the Lord is upon water. Alleluia. The voice of the Lord is powerful; the voice of the Lord is full of majesty. Alleluia” (Ps. 29:3–4); “Look to him and be radiant, so your faces shall never be ashamed. Come O sons, listen to me, I will teach you the fear of the Lord. Alleluia” (Ps. 34:11); “We went through fire and water, yet You have brought us forth to a spacious place. Alleluia” (Ps. 66:12); “Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow. Hide your face from my sins and blot out all my iniquities. Alleluia. Create in me a clean heart, O God; and renew a right spirit within me. Alleluia” (Ps. 50:7, 9–10); “For the Lord has chosen Zion; He has desired it for His habitation. Alleluia” (Ps. 132:13).

These psalms were specifically chosen under the guidance of the Holy Spirit to consecrate the water by the power of the Spirit. These psalms can be applied in the life of the person

1364 St. Augustine of Hippo, Lectures or Tractates on the Gospel According to St. John 80.3 (NPNF I/7:344).

1365 The Prayers of Sarapion of Thmuis, in Whitaker, E. C. and Johnson, M. E., Documents of the Baptismal Liturgy (revised 3[rd] ed.) (Collegeville, Minnesota: Liturgical Press, 2003): p. 129.

1366 See St. Augustine of Hippo, Lectures or Tractates on the Gospel According to St. John 118.5 (NPNF I/7:432).

being baptized. The waters bear the voice of the Lord that thunders in one’s life, abolishing sin and establishing His Kingdom once again. In the waters, the believer receives the mystery of enlightenment, and his face is no longer ashamed. He becomes a child of God, who listens to His commandments and fears the Heavenly Father. The believer goes into the water and goes through the fire of the Spirit and the holy waters to pass over into the comfort of the new paradise. In this water, he is washed internally and is purified. Therefore, he carries a new heart and a new spirit. In this water, God declares His choice of the church “Zion,” and accepts the believer to be a living member in it.

Indeed, it is a unique text that powerfully and simply brings us to all the secrets of baptism through the psalms. As for the custom of pouring the Chrism into the waters of baptism, as well as anointing the person being baptized with it, it is a very old custom. D. Stone says that this custom started in Egypt in the late fifth century and was found in the west in the sixth century.¹³⁶⁷ St. Dionysius the Areopagite says that the bishop “goes himself toward that mother of all divine adoption. With sacred invocations he consecrates the water, completing this by pouring the most holy ointment three times into it, each pouring being made in the form of a cross.”¹³⁶⁸