The answer
The effect of Holy Communion is everlasting, and does not wear off like regular food. Our Lord had instituted this Mystery saying, "Take, eat; this is My body which is broken for you; do this in remembrance of Me." In the same manner He also took the cup after supper, saying, "This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me." For as often as you eat this bread and drink this cup, you proclaim the Lord's death till He comes" (1 Cor 11:24-26), so He asked us to do this often to remember Him. In the Divine Liturgy, the priest prays "For every time you eat of this bread and drink of this cup, you proclaim My Death, confess My Resurrection, and remember Me till I come".The Early Church celebrated this Sacrament at least once a week. "So continuing daily with one accord in the temple, and breaking bread from house to house" (Acts 2:46), "Now on the first day of the week, when the disciples came together to break bread" (Acts 20:7).
Answered by His Eminence Metropolitan Youssef (opens in a new tab)