3 occurrences across the corpus

Apostolic Fathers

Ignatius to the Philadelphians 3:4

As concerning Philo the deacon of Cilicia, a most worthy 2 man, he still ministers unto me in the word of God: together with Rheus 3 of Agathopolis, a singular good person, who has followed me even from Syria, not regarding his life: These also bear witness unto you.

Ignatius to the Smyrnaeans 3:11

Ye have done well in that ye have received Philo, and Rheus Agathopus, who followed me for the word of God, as the deacons of Christ our God.

Ignatius to the Smyrnaeans 3:24

I salute the families of my brethren, with their wives and children; and the virgins that are called widows. Be strong in the power of the Holy Ghost. Philo, who is present with me salutes you.