The blessing is a liturgical gesture by which the priest or the bishop makes the sign of the cross over the oblation, the water, or icon. The blessing may also mean a special prayer for the blessing of food or a house.
The blessing is inspired by the gesture of Christ in Mark 10:16. The blessing is also the final prayer of the priest or the bishop for the dismissal of the congregation. This prayer changes according to the season (there is a special one for the Holy Week, another for the ceremony of matrimony, etc.).
The Coptic Euchologion contains several prayers of blessing. For each meaning, the gesture of the priest giving the blessing changes. It is important to note that only priests and bishops are allowed to give the blessing in the Coptic Church.