"A bishop must not only purify and illuminate others, but he must also lead them to perfection. He must direct priests and govern them; he is the father of the faithful of his diocese, no matter what their standing may be; even exempt religious are his sons. Moreover, he frequently has to make heroic acts of virtue in order to safeguard the spiritual salvation of his flock, and he must be prepared to endure even greater and more difficult things for them. In order to fulfill all these duties worthily, it will be very helpful for him to give himself to prayer, so that he may live deeply by faith and charity and speak to his flock from the abundance of holy love."
-- Garrigou Lagrange (The Priesthood and Perfection)
Prayer to the Holy Angels on Behalf of a Cardinal (For the Conclave)
Bless the Lord, all you His angels, You who are mighty in strength and do His will intercede for Cardinal [ name ] at the throne of God. By your unceasing watchfulness protect him in every danger of soul and body. Obtain for him the grace of final perseverance, so that after this life he may be admitted to your glorious company and with you may sing the praises of God for all eternity. All you holy angels and archangels, thrones and domination, principalities and powers and virtues of heaven, cherubim and seraphim, and especially you, dear guardian angel who has been charged with the care of Cardinal [ name ] intercede for him and obtain for him special graces as he participates in the conclave to elect our next Pope.
Obtain for him purity of intention in seeking the will of God, wisdom in discerning it, and the faithfulness to implement it. Glory be to the Father, and to the Son, and to the Holy Spirit, as it was in the beginning, is now and ever shall be, world without end. Amen