Through Him, and with Him, and in Him, is to Thee, God the Father Almighty, in the union of the Holy Ghost, all honor and glory world without end. Amen.
This is the last prayer of the Canon of the Mass. It is a prayer of praise. The Preface, the prayer that introduces the Canon, is also a prayer of praise. The first purpose for which the Holy Sacrifice of the Mass is offered is to give to God the honor that should be given to Him.
This short prayer speaks of honor and glory for the Most Holy Trinity. Our Lord’s sacrifice on the cross, which is continued in the Mass, makes it possible for us to give worthy praise to the Most Holy Trinity.
The priest holds the Sacred Host in his hands as he says this prayer. With it he makes three crosses over the chalice and two crosses before the chalice. Then he raises both chalice and Host. As he does these things he is saying the last prayer of the Canon of the Mass.
The people can hear the last words of this short prayer of praise. The priest raises his voice as he says “per omnia saecula saeculorum.” In English per omnia saecula saeculorum means “world without end” or “forever and ever.” All the other prayers of the Canon, after the Preface, have been recited silently. The Amen is said by the altar boy. He does so for all the people in the church. Amen means “So be it.”
The offering part of the Mass ends with this last prayer of the Canon. During the Offertory, priest and people offered bread, wine, and themselves to God. At the Consecration, Our Lord offered Himself to His Father, just as He did at the Last Supper and on the Cross. Immediately after the Consecration, we joined with the priest and offered Our Lord to God the Father.
Taken from The Kingdom of God series The Holy Sacrifice of the Mass by Ellamay Horan. I am not the Author merely the distributor. God Bless BJS!!