CIC 784 On entering the People of God through faith and Baptism, one receives a share in this people’s unique, priestly vocation: “Christ the Lord, high priest taken from among men, has made this new people ‘a kingdom of priests to God, his Father.’ The baptized, by regeneration and the anointing of the Holy Spirit, are consecrated to be a spiritual house and a holy priesthood.”1

CIC 1546 Christ, high priest and unique mediator, has made of the Church “a kingdom, priests for his God and Father.”2 The whole community of believers is, as such, priestly. The faithful exercise their baptismal priesthood through their participation, each according to his own vocation, in Christ’s mission as priest, prophet, and king. Through the sacraments of Baptism and Confirmation the faithful are “consecrated to be. .. a holy priesthood.”3

CIC 2854 When we ask to be delivered from the Evil One, we pray as well to be freed from all evils, present, past, and future, of which he is the author or instigator. In this final petition, the Church brings before the Father all the distress of the world. Along with deliverance from the evils that overwhelm humanity, she implores the precious gift of peace and the grace of perseverance in expectation of Christ’s return By praying in this way, she anticipates in humility of faith the gathering together of everyone and everything in him who has “the keys of Death and Hades,” who “is and who was and who is to come, the Almighty.”4
Deliver us, Lord, we beseech you, from every evil and grant us peace in our day, so that aided by your mercy we might be ever free from sin and protected from all anxiety, as we await the blessed hope and the coming of our Savior, Jesus Christ.5

CIC 2855 The final doxology, “For the kingdom, the power and the glory are yours, now and forever,” takes up again, by inclusion, the first three petitions to our Father: the glorification of his name, the coming of his reign, and the power of his saving will. But these prayers are now proclaimed as adoration and thanksgiving, as in the liturgy of heaven.6 The ruler of this world has mendaciously attributed to himself the three titles of kingship, power, and glory.7 Christ, the Lord, restores them to his Father and our Father, until he hands over the kingdom to him when the mystery of salvation will be brought to its completion and God will be all in all.8

1 LG 10; Cf. Heb 5:1-5; Rev 1:6.
2 Rev 1:6; cf. Rev 5:9-10; 1 Pet 2:5,9.
3 LG 10 § 1.
4 Rev 1:8,18; cf. Rev 1:4; Eph 1:10.
5 Roman Missal, Embolism after the Lord’s Prayer, 126: Libera nos, quaesumus, Domine, ab omnibus malis, da propitius pacem in diebus nostris, ut, ope misericordiae tuae adiuti, et a peccato simus semper liberi, et ab omni perturbatione securi: expectantes beatam spem et adventum Salvatoris nostri Iesu Christi.
6 Cf. Rev 1:6; 4:11; 5:13.
7 Cf. Lk 4:5-6.
8 1 Cor 15:24-28.