Saint Achaicus is mentioned by St Paul in I Corinthians 16:17, saying, I am glad of the coming of Fortunatus and Achaicus: for that which was lacking on your part they have supplied. For they have refreshed my spirit, and yours.
- Holy apostle Achaicus of the Seventy;
- Entreat the merciful;
- To grant our souls forgiveness of transgressions.
Kontakion (Tone 4)
- The Church ever sees you as a shining star, O apostle Achaicus,
- Your miracles have manifested great enlightenment.
- Therefore we cry out to Christ:
- "Save those who with faith honor Your apostle, O Most Merciful One."
- The Synaxis of the Holy Seventy Apostles - Chrysostom Press.