The symbolism which is so evident on the front (ecclesiastical west end) of the church and in its interior continues around the rest of the exterior. To the left of the front doors is a stone moulding representing the Holy Spirit descending into the symbols of Sacrament, the Bread, the Wine and the Font.

To the right of the doors a similar moulding represents the Word of God, the Eagle, with Satan entangled in his grasp and an open book with the letters Alpha and OmegaOn the side wall of the parish office, are five further stone mouldings.

First, a representation of Creation with the hand of God lifting the sun, moon and stars from the waters. The winged thunderbolt, which was regarded as one of God’s great instruments, is also shown. The next moulding shows Adam and Eve in disgrace leaving the Garden of Eden and walking out into the outer darkness of the world. Adam puts an arm round Eve for comfort, but the Hand of Christ comes from the sky and offers them a fresh opportunity.

The third is one of two which depict scenes from the life of St Molua. It illustrates the legend that, when he was young, Molua miraculously cured his father of a cancerous foot; the demon of disease is seen fleeing from the foot.

The fourth shows the protecting hands of God, one holding Man in His palm above the flames of perdition and loss, with the second hand above sheltering him from the cruel shafts of the world. The last moulding in this group represents Molua as Bishop supervising the erection of one of his churches.

On the opposite side of the church, on the side wall of the choir robing room, are five more stone mouldings, depicting symbols of Jesus. The first is the Rose of Sharon and the Lamb of God; the second, the pelican feeding its young with blood from its own breast with, above, the Crown of Thorns and Calvary and, below, the interwoven Celtic pattern symbolic of eternal life. The fourth symbol of Jesus, the Fish, is seen on the third carving, with the tree that grew from a grain of mustard seed in which the birds of the air took shelter.

The Lion of Judah, with Satan bruising His heel and Christ bruising the head of Satan with a cross, is the fourth carving. He wears a crown and above Him is the Tree of life. The discarded apple of Eden lies at His feet. The final image is of the True Vine and the Chalice. It was the great quest of the Middle Ages to try to discover this Holy Grail and it has become a symbol of high venture. On the outside of the nearby Parochial Hall, above the porch is a sculpture in beaten sheet copper representing Jesus the Carpenter. On the wall at the left-hand side, rather concealed from view, are two more stone mouldings.

The first shows the snakes being banished from Ireland by the crosier of St Patrick. The snakes are believed to typify certain sins and pagan heresies of the Druidical world of Ireland so, with that in mind, the next rather puzzling panel is more easily understood. It shows Crom Cruskin, the patron deity of Tara, one of the famous idols of the Druids against whose priests Patrick strove. But the cross of conquest has been driven through his belly to remove his evil power and the crosier of Patrick, ornamented with his Irish cross, rises triumphant above.