Read about the Archangel Gabriel here
The Synaxis of the Archangel Gabriel is celebrated on the day after the Annunciation, and a second time on July 13. It was instituted in the ninth century, perhaps to celebrate the dedication of a church at Constantinople. Originally, the Feast was observed on October 16
Liturgical Hymns in Honor of the Archangel Gabriel from the Menaion
Translations copyright by Br. Isaac E. Lambertsen, drawn from the Menaion of the Orthodox Church, in 12 volumes (in English), published by the St. John of Kronstadt Press, 1180 Orthodox Way, Liberty TN 37095; www.sjkp.org. Authorized only for private devotional purposes. Further distribution, reproduction, or incorporation into other documents is prohibited without prior permission from the publisher. All rights reserved.
O archangel of the Lord, I entreat thee, who art become divine and immaterial light through partaking immaterially in the ultimate Light; by thy prayers illumine my mind, that I may hymn thee.
In gladness let us form a godly choir today, honoring the foremost of the incorporeal intelligences, who announced the ineffable Joy which cameth into the world for the good thereof.
Having thee, O Gabriel, as a great intercessor and helper before God, and as a rampart and confirmation, praising thee, we who love thee are delivered from misfortunes and the harm of the serpent.
O Gabriel, in that thou art truly immaterial and illumined immaterially through partaking of the immaterial Light, thou art seen to be a secondary luminary, ever enlightening the material men who hymn thee.
O thou who art great among the angels, thou hast been vouchsafed renown, having disclosed unto us the great mystery whereby we who honor thee greatly have been caught up to the most exalted heights.
From heaven hast thou appeared unto all who ever seek thee with love, and hast stilled the tempest of temptations and tribulations which hath raged against us, O Gabriel, thou supreme commander.
O right wondrous Gabriel, thou didst stand of old through divinely appointed communion, enlightening the Prophet Daniel and expounding the manifestation of incomprehensible things through the Spirit.
With mouths of clay we joyously praise thee who art fiery by nature. From the fire which burneth everlastingly do thou rescue us by thy divine mediations, O Gabriel.
Arrayed in divine vesture which shineth with unapproachable glory more brightly than the sun, O supreme commander of God's servants, thou dost stand in gladness before the King of heaven.
Made radiant by communing with the primordial Mind, thou art seen to be a secondary luminary, crying aloud with the countless ranks of the angels: Holy is the Father, the Accomplisher of all things, the equally unoriginate Son, and the Spirit Who is enthroned with them!
Fiery is thine aspect, most wondrous thy beauty, and great is thy glory, astonishing every mind, O Gabriel, great leader of the incorporeal hosts of God, thou adornment of all who hymn thee with faith.
When of old the godly Zacharias beheld thee standing nearby at the hour of censing, he fell mute; for he did not believe the strange proclamation which thou didst make, O Gabriel, thou supreme commander.
Earthly tongues cannot honor thee, the radiant and heavenly intelligence, most splendidly illumined with divine splendor in manner past understanding and recounting.
O greatly splendid beam of the Sun, leader of the fiery ministers, by thy radiant entreaties to the Master rescue those who hymn thee from the darkness of the passions.
Confound the counsels of the heathen; confirm the Orthodox Faith; and abolish the divisions of the Church, by thy supplications to the Creator of all, O archangel.
Thou didst announce the birth of John unto Zacharias, O glorious one, when he once stood within the temple of God and chanted unto our Deliverer and God: Blessed art Thou, O all-hymned Lord and God of our fathers!
The most glorious magnificence of thy temple, O Gabriel, doth most splendidly sanctify the souls of the faithful and doth impel them to cry aloud: Blessed art Thou, O all-hymned Lord and God of our fathers!
Mystically enlightened by communing with the primordial Light, O supreme commander, thou art seen to be truly a secondary luminary, and dost ever illumine those who sing: Blessed art Thou, O all-hymned Lord and God of our fathers!
With sacred utterances the priestly people hymn thee in gladness, for thou didst announce unto the Virgin, O archangel, the Word, the Cause of all, Who was incarnate for our sake and becameth one of us.
Uniting thyself immaterially to the great and primordial Mind, O archangel, with thy fiery mouth thou dost chant the awesome hymn which all the angelic choirs sing: Hymn the Lord, O ye works, and exalt Him supremely for all ages!
Manifestly adorned with divine splendor, thou dost traverse the heavens and the earth, carrying out the wishes of Christ, the God of all, O Gabriel, thou leader of angels and beauty of those who ever praise thee with faith.
The Word, wishing to associate Himself hypostatically, in the flesh, with men, had thee go before Him and prepare a sanctified palace for Him, O sacred Gabriel, chanting: Hymn the Lord and exalt Him supremely for all ages!
Ministering before the throne of grace, illumined with splendor which passeth understanding, edified in sacred manner, beholding the Light and enlightening those who honor thee with faith, O sacred Gabriel, supreme commander, thou dost intercede in awesome manner.
As the heaven adorned with stars dost thou appear resplendent with divine splendors; and, like a general, thou dost hold a most radiant staff in thy hands and goest about the whole universe, fulfilling the will of the Master and ever rescuing the faithful from evil circumstances.
Still thou the cruel storm of the barbarians which ever riseth up against thy servants, and heal thou the breaches within the Church; grant deliverance from transgressions unto those who hymn thee and victories to our Orthodox hierarchs over all heresies, through thy fervent intercession, O Gabriel.
O most good and all-glorious twain, Michael and Gabriel, who stand before the throne of the glory of God: ask forgiveness of sins and release from evils for all, in that ye are our intercessors and in all emulate the goodness of the Master.