These garments are placed on the newly-baptized immediately after coming up out of he waters of baptism (the Orthodox baptize by immersion, even in the case of infant baptism). As the robe is being placed on the new Christian, the priest says the prayer: "The servant of God, N., is clothed with the robe of righteousness; in the Name of the Father, and of the Son, and of the Holy Spirit. Amen." and the choir sings: "Vouchsafe unto me the robe of light, O Thou who clothest Thyself with light as with a garment, Christ our God, plenteous in mercy."
"O Thou who, through holy Baptism, hast given unto Thy servant remission of sins, and hast bestowed upon him (her) a life of regeneration: Do Thou, the same Lord and Master, ever tgraciously illumine his (her) heart with the light of Thy countenance. Maintain the shield of his (her) faith unassailed by the enemy [i.e., Satan]. Preserve pure and unpolluted the garment of incorruption wherewith Thou hast endued him (her), upholding inviolate in him (her), by Thy grace, the seal of the Spirit, and showing mercy unto him (her) and unto us, through the multitude of Thy mercies..."
