Commemoration
The brief liturgical notice for September 22 records the two martyrs together with the words that they met their end by the sword. Beyond this, the entry supplies no biographical detail.
Traditional commemorative verses accompany the notice. The verses for Isaac play on his name by contrasting him with the patriarch Isaac, the child of Sarah, who was spared at the altar, whereas the martyr Isaac is said to have paid in full by being slain. The verses for Martin relate that, inspired with the courage of Christ, he hastened to the sword.