Domine, non sum dignus ut intres sub tectum meum, sed tantum dic verbo, et sanabitur anima mea.

The prayer “Domine, non sum dignus ut intres sub tectum meum, sed tantum dic verbo, et sanabitur anima mea” is the Latin rendering of the centurion’s words to Christ in Matthew 8:8. In the Gospel the Roman centurion, seeing the power of Jesus to heal, declares his unworthiness to have Christ enter his house, yet trusts that a single word of the Lord will bring healing to his soul1.

Its origin lies in this scriptural episode; the Church has long adopted the centurion’s confession as a model of humble faith. The Catechism records that the faithful “can only echo humbly and with ardent faith the words of the Centurion” when approaching the great sacrament of the Eucharist1.

In the Traditional Latin (Tridentine) Mass the prayer is used as the response of the people after the priest proclaims “Ecce Agnus Dei” (Behold the Lamb of God). The General Instruction of the Roman Missal specifies that, while facing the people, the priest says “Domine, non sum dignus” and the congregation joins in the same words2. This occurs just before the distribution of Holy Communion, expressing the same humility and reliance on Christ’s saving word as in the Gospel.

The meaning of the prayer is twofold. First, it acknowledges human unworthiness before the divine presence of Christ (“I am not worthy to have you enter under my roof”). Second, it places total trust in the power of Christ’s word to heal and save the soul (“but only say the word and my soul shall be healed”). Thus the prayer encapsulates a posture of repentance, humility, and confident reliance on the mercy of God.