Troparion, tone 4
Thou art exalted in glory, O Christ our God, / brought joy by the disciple, / by the promise of the Holy Spirit, / by the former blessing announced to them: / for Thou art the Son of God, the Redeemer of the world.
Those who were informed by him - when they were established (in the faith).
…Joy created by the disciple (by what, how?) - by the promise of the Holy Spirit...
...by the former blessing notified to him - again independent dative; can be translated as follows: after (when) Your blessing confirmed them (in what?) - that You are the Son of God, the Redeemer of the world - that You are the Son of God, the Redeemer of the world.
Kontakion, tone 6
Having fulfilled your care for us, / and having united us on earth with the heavenly, / you ascended in glory, Christ our God, / never departing, / but remaining persistent, / and crying out to those who love You: / I am with you, and no one is against you.
Having fulfilled your care for us - having completed Your Providence for us, the arrangement of our salvation. Even on earth - what is on earth, earthly. And no one is against you - and no one is against you.
Greatness
We magnify You, Life-Giving Christ, and honor the Divine Ascension into heaven with Your most pure flesh.
Zadostoynik
Chorus: Magnify, my soul, Christ the Giver of Life, who ascended from earth to heaven.
Irmos of the 9th song of the canon: More than mind and words, the Mother of God, who in the yearless summer ineffably gave birth to you, we magnify with one and the same wisdom.
Above the mind and words - above the mind and words (that is, incomprehensible and inexpressible). In the summer of the Timeless - in time - the Eternal.
The canon (and, accordingly, the honoree) of the holiday is the creation of St. John of Damascus.