On February 24, the Christian Church remembers St. Matthias. Shortly after the Ascension of Our Lord, Matthias was was chosen to replace Judas.
you chose your faithful servant Matthias
to take part in the ministry and apostleship
from which Judas fell in sin.
Preserve your church from false apostles,
and always bless us with faithful ministers
of your Word and sacraments;
through Jesus Christ our Lord.
Source: Freely modified from Mozarabic Collects, ed. Rev. Chas. R. Hale, New York, 1881