Perseverance in faith and in all good works until the end
From the Novena to St. Michael the Archangel
Sacred Scripture: Daniel 12:1
Meditation for Day 8
The Archangels are God's messengers for his most important missions; through their choir and the intercession of St. Michael himself, we ask for the grace of final perseverance — to remain faithful to the end. The Prophet Daniel was told, At that time shall arise Michael, the great prince who has charge of your people, and there shall be a time of trouble such as never has been, but at that time your people shall be delivered (Dan 12:1). This is the promise St. Michael carries for each soul that perseveres: ultimate deliverance and entry into eternal life. Beg him today for the grace never to abandon the faith, no matter the trial.Daily Novena Prayer (recited every day)
Closing Prayer
O glorious prince St. Michael, chief and commander of the heavenly hosts, guardian of souls, vanquisher of rebel spirits, servant in the house of the Divine King and our admirable conductor, you who shine with excellence and superhuman virtue deliver us from all evil, who turn to you with confidence and enable us by your gracious protection to serve God more and more faithfully every day. Pray for us, O glorious St. Michael, Prince of the Church of Jesus Christ, that we may be made worthy of His promises. Almighty and Everlasting God, Who, by a prodigy of goodness and a merciful desire for the salvation of all men, has appointed the most glorious Archangel St. Michael Prince of Your Church, make us worthy, we ask You, to be delivered from all our enemies, that none of them may harass us at the hour of death, but that we may be conducted by him into Your Presence. This we ask through the merits of Jesus Christ Our Lord. Amen.
Concluding prayers: Many novena traditions add one Our Father, one Hail Mary, and one Glory Be at the close of each day's prayer.
Source
https://www.ewtn.com/catholicism/devotions/chaplet-of-st-michael-the-archangel-386