Blessed be the Holy Trinity and undivided Unity. We will give glory to Him, because He has shown mercy to us. Ps. 8:2. O Lord, our Lord, how glorious is Your name over all the earth! V. Glory be . . .
COLLECT - TRINITY SUNDAY - Almighty and ever-living God, to You we owe the grace of our true faith, which enables us to acknowledge the glory of the eternal Trinity and to adore the blessed Unity through the power of Your majesty. Grant that by holding fast to that faith we may always be guarded against all afflictions. Through our Lord . . .
Commemoration of the FIRST SUNDAY AFTER PENTECOST - O God, the strength of all who place their trust in You, graciously hear our prayers. Because of our weak human nature, we can do nothing without You. Help us by Your grace that we may fulfill Your commands and please You in will and action. Through our Lord . . .
O the depth of the riches of the wisdom and of the knowledge of God! How incomprehensible are his judgments, and how unsearchable his ways! For who hath known the mind of the Lord? Or who hath been his counsellor? Or who hath first given to him, and recompense shall be made him? For of him, and by him, and in him, are all things: to him be glory for ever. Amen.
Blessed are You, O Lord, who behold the depths and are enthroned upon the Cherubim. V. Blessed are You, O Lord, in the firmament of heaven, and worthy of praise forever.
Alleluia, alleluia! V. Dan. 3:52 Blessed are You, O Lord the God of our fathers, and worthy of praise forever. Alleluia!
At that time, Jesus coming, spoke to them, saying: "All power is given to me in heaven and in earth. Going therefore, teach ye all nations: baptizing them in the name of the Father and of the Son and of the Holy Ghost. Teaching them to observe all things whatsoever I have commanded you. And behold I am with you all days, even to the consummation of the world."
Blessed be God the Father, and the only-begotten Son of God, and the Holy Spirit, because He has shown mercy to us.
SECRET Bless this Sacrificial Offering as we call upon Your holy name, O Lord our God, and through it let us too become an eternal offering to You. Through our Lord . . .
SECRET - Commemoration of the FIRST SUNDAY AFTER PENTECOST Graciously accept the offerings we dedicate to You, O Lord, and let them win for us Your unending assistance. Through our Lord . . .
We bless the God of heaven, and we will praise him before all men, because He has shown mercy to us..
POST COMMUNION - O Lord, our God, let us be made strong in body and soul by the reception of this Sacrament and by acknowledging the Holy, Eternal Trinity and its undivided Unity. Through our Lord . . .
POST COMMUNION - Commemoration of the FIRST SUNDAY AFTER PENTECOST
We have received Your exceedingly great Gifts in all their fullness, O Lord. Grant that we may use these graces for our salvation and never cease to sing Your praises. Through our Lord . . .
Sources: Saint Andrew Daily Missal and the Marian Missal , 1945