The United States Bishops' website has useful instructions to priests about masses for the election of a pope,
These same instructions also mention that the collect for such as mass may also be used as the concluding prayer for lauds and vespers of the Liturgy of the Hours on any day that is not a feast,solemnity, or obligatory memorial. That would be most weekdays for the first three weeks of March, except for St. Joseph on March 19th. You would not of course, use it at all during Holy Week.
Here is the prayer for you to copy and keep with your breviary:
O God, eternal shepherd,
who govern your flock with unfailing care,
grant in your boundless fatherly love
a pastor for your Church
who will please you by his holiness
and to us show watchful care.
Through our Lord Jesus Christ, your Son,
who lives and reigns with you in the unity of the Holy Spirit,
one God, for ever and ever.
In addition, we may add a petition for the papal election to the regular petitions during vespers. Here are the ones suggested:
That the Holy Spirit will inspire and strengthen the Cardinal-electors as they choose a new
Holy Father to lead us, we pray to the Lord.
That the College of Cardinals in its electoral process may be a worthy vehicle of God’s
grace guiding the Church, we pray to the Lord.
That the Holy Spirit will work strongly in the next Pope chosen by the College of
Cardinals, we pray to the Lord.
These same instructions also mention that the collect for such as mass may also be used as the concluding prayer for lauds and vespers of the Liturgy of the Hours on any day that is not a feast,solemnity, or obligatory memorial. That would be most weekdays for the first three weeks of March, except for St. Joseph on March 19th. You would not of course, use it at all during Holy Week.
Here is the prayer for you to copy and keep with your breviary:
O God, eternal shepherd,
who govern your flock with unfailing care,
grant in your boundless fatherly love
a pastor for your Church
who will please you by his holiness
and to us show watchful care.
Through our Lord Jesus Christ, your Son,
who lives and reigns with you in the unity of the Holy Spirit,
one God, for ever and ever.
In addition, we may add a petition for the papal election to the regular petitions during vespers. Here are the ones suggested:
That the Holy Spirit will inspire and strengthen the Cardinal-electors as they choose a new
Holy Father to lead us, we pray to the Lord.
That the College of Cardinals in its electoral process may be a worthy vehicle of God’s
grace guiding the Church, we pray to the Lord.
That the Holy Spirit will work strongly in the next Pope chosen by the College of
Cardinals, we pray to the Lord.
