Part of the Communion Rite, just after the Ecce Agnus Dei (Behold the Lamb of God) and before the Communion of the Faithful.
Servers should be looking up and adoring the Blessed Sacrament and strike their left breast with the right fist at each "not worthy".
Said by the people, while adoring the Blessed Sacrament held by the celebrant and deacon.
The People respond together with the Priest:
Lord, I am not worthy that thou shouldst enter under my roof, but speak the word only, and my soul shall be healed.
Lord, I am not worthy that thou shouldst enter under my roof, but speak the word only, and my soul shall be healed.
Lord, I am not worthy that thou shouldst enter under my roof, but speak the word only, and my soul shall be healed.