It's Pentecost! Happy Birthday to the Church!
O Holy Spirit, we humbly implore Thee to help the Catholic Church, and by Thy supernal power, strengthen and confirm it against the assaults of the enemy. By your charity and grace, renew the spirit of Thy servants whom Thou hast anointed, that in Thee they may glorify the Father and His only begotten Son, our Lord. Amen.
~Pope Leo XIII, August 26, 1889