The catacomb inscriptions and pictures, besides their overwhelming testimony to the belief of the early Christians in the continuance of life after death, in the immortality of the soul, a testimony expressed in a countless number of ways, bear their witness to some of the more important dogmas of the Christian faith.
The extreme brevity of the inscriptions and the necessarily small space allotted to the pictures and emblems graven and painted on the sepulchral slabs, for the most part very small, of course preclude anything like any complete enunciation even of the principal Articles of the Christian faith: still what we find on these slabs tells us with no uncertain voice in whom these early congregations believed, and to whom these fervent prayers were addressed. Each of the Persons of the ever-blessed Trinity are named in many of these epitaphs.
We find many instances of the formula of the ancient creeds, "In God and in Christ." This distinct enumeration of the two first Persons of the Blessed Trinity bears witness to the Catholic faith of the composers of the epitaphs.
Nor is the Third Person of the Trinity absent from these epitaphs. We read on some for instance: "In the Holy Spirit of God"; "Mayest thou live in the Holy Spirit." Even the mention of all three Persons of the Blessed Trinity has been found engraved on these sepulchral tablets.
What, however, is most striking in these early records of the belief of the Christian congregation is the testimony they bear—a testimony repeated an innumerable number of times—to the primitive belief in the supreme Divinity of Jesus Christ. We find again and again such formulas as "In the name of Christ"; "In God the Lord Christ"; "In God Christ"; "The great God Christ" ("Deo Magno Christo"). In the earliest epitaphs the most common symbol is the fish, painted, carved, or written at the beginning or end of the epitaph, not as part of the sentence, but as a complete formula in itself. Now this was a declaration of faith in "Jesus Christ, Son of God, Saviour"; the letters which form the Greek word
