Aposticha stichera, in Tone V: Spec. Mel.: “Rejoice…”—

Rejoice, O sacred Isaac, emulator of the angels in thy manner of life! For, undertaking their way of life, with understanding thou didst please God in righteousness. Wherefore, thou didst suppress the uprisings of the passions and didst acquire the radiance of dispassion, wherewith thou didst shine forth as a heavenly luminary. For this cause we bless thee as a divine teacher of the way of Christ and a most excellent judge of the contest, who asketh for all cleansing, salvation and mercy divine.

Now & ever…: Theotokion, in the same tone—

Troparion, in Tone V—

Stichos: Precious in the sight of the Lord is the death of His saints.

Rejoice, O sacred Isaac, divinely wise preacher of hesychia! For, exercising thyself in asceticism, thou didst cleanse thyself of all dross; wherefore, thou didst avoid all earthly stumbling-blocks, and wast shown to be most exalted in heart, ineffably receiving the immaterial light, for in body thou didst pass through the darkness which surpasseth light, and in purity didst with a perfect mind hold converse with the Creator. Intercede with Him, O father, that we also may be given the light of grace divine.

Stichos: Blessed is the man that feareth the Lord; in His commandments shall he greatly delight.

Rejoice, O sacred Isaac, instructor and paragon of monastics, model of abstinence and noetic prayer, and of every form of life sublime! For having done as our Savior hath said, O venerable one, thou didst instruct men well in purity, in modesty and perfection of life. Wherefore, do thou ever send down upon us strength from on high, O father, that we may be well-pleasing unto our God, that we may at last inherit the kingdom of Christ.

Glory…, in Tone II—

With hymns and songs let us praise Isaac the God-bearer, who by asceticism became the peer of the angels and in the virtues became divine; for like a lofty palm-tree, watered with showers of tears, by the power of the Spirit he produceth most sweet fruit for the Church of Christ, and without ceasing intercedeth with Christ, the Bestower of light, that He grant us cleansing and remission of transgressions.

All of my hope do I set on thee, O Mother of God; keep me under thy protection.

Illumined by rays of the virtues, O God-bearer Isaac, in spirit thou wast shown to be an all-radiant beacon of the life which is in Christ; and by thy divinely inspired teachings, O father, thou dost guide safely to the way of salvation those who bless thee as a godly servant of Christ. Twice

And “Virgin Theotokos, rejoice!…”, once.