The church has a number of interesting fragments of wall painting from the fifthteenth to the eighteenth centuries. The earliest painting in the south aisle is a depiction of 'Christ of the Trades' or 'The Consecration of Labour' which was a popular subject in churches in South Wales in the 1400s. Much of the painting is lost, but the over-size figure of Christ, wearing a loincloth, can be seen in relief in the centre. He shows his five wounds, surrounded by tools that, if used on the Sabbath, would wound him more. A pair of shears, a hoe and a spade can be seen faintly near the sides of the painting.
Facing the south door is a cartouch with an ornamental scroll work border surmounted by a pilgrim's shell. The text reads: Keep thy foot when ye enter ye house of God and be more ready to hear then to give ye sacrifice of fools Ecc.v.i. It is intended to warn visitors to enter humbly, remembering that this is where God is worshipped.
Near the organ recess is a fragment of the Lord's Prayer from the seventeenth century. On the east wall near the altar can be seen two long texts of the Ten Commandments, with a border of foliage acanthus leaves. The text was copied onto boards in 1910 and these can be seen in the north aisle.