St. Eleutherius governed the Church during the period that followed the persecution of the Emperor Commodus. Faith, at the time, made great progress in the whole world. After a pontificate lasting fifteen years, he died in 185 and was buried on the Vatican Hill near the body of St. Peter.
Protexisti me, Deus, a conventu malignantium, alleluja: a multitudine operantium iniquitatem, alleluja, alleluja. * Exaudi, Deus, orationem meam cum deprecor: a timore inimici eripe animam meam.
Thou hast protected me, O God, from the assembly of the malignant, alleluia: from the multitude of the workers of iniquity, alleluia, alleluia. * Hear, O God, my prayer, when I make supplication to Thee: free my soul from the fear of the enemy.
(Psalm 63:3,2 from the Introit of Mass)
Be mindful of our weakness, O almighty God, and since the burden of our deeds is grievous to us, grant that the glorious intercession of blessed Eleutherius Thy martyr and bishop may protect us.
From the Catholic Encyclopaedia: http://www.newadvent.org/cathen/05378a.htm