On Sunday, August 6th, the Feast of the Transfiguration of the Lord, grapes and various fruits were blessed at the conclusion of the Divine Liturgy. We greet you all with the exclamation, "Joyous Feast!"
It is the tradition of the Day of Transfiguration to consecrate grapes, apples and other fruit after the Divine Liturgy. The custom of bringing fruit to the temple for consecration originates in the Old Testament time (Gen 4:2-4; Ex 13:12-13; Num 15:19-21; Deut 8:10-14). The Apostles brought this tradition to the Church of the New Testament (1 Cor 16:1-2). Instruction regarding bringing fruit to temple is found in the Third Rule of the Apostolic Canon, the earliest collection of ecclesiastic laws (canons), known since the second century. In Greece, August is the month of ripeness of fruit, mostly grapes and new ears of corn. Since old time, the faithful have been bringing them to temple for consecration and as Thanksgiving to God. St. John Chrysostom wrote, "Plowman receives fruit from the earth not so much for his labour and diligence, as out of goodness of God Who grows this fruit, because neither is he that planteth any thing, neither he that watereth; but God that giveth the increase."
Grapes are brought to temple because they are directly related to the Eucharistic sacrament; that is why in the prayer for consecration of grapes the priest says, "Bless, Lord, this new fruit of vine which reached ripeness because Thou kindly provided good weather, drops of rain and stillness. Let eating this fruit of vine make us joyful. And give us the honor of offering this fruit to Thee, as the gift of purging of sins, altogether with the Holy Body of Thy Christ." (From FatherAlexander.org)