Troparion — Tone 3
The world has found you to be a great defense against tribulation / and a vanquisher of heathens, O Passion-bearer. / As you bolstered the courage of Nestor, / who then humbled the arrogance of Lyaios in battle, / Holy Demetrius, entreat Christ God to grant us great mercy.
Kontakion — Tone 2
God, who has given you invincible might, / has tinged the Church with streams of your blood, Demetrius! / He preserves your city from harm, / for you are its foundation!