J. Douglas MacMillan has been held at that institution in his honour. According to Hywel Jones, MacMillan's preaching was marked by "powerful originality and strong orthodoxy". He is best known for his book "The Lord Our Shepherd" (). This is an exposition of Psalm 23, originally given to the Evangelical Movement of Wales in 1979. MacMillan drew on his 12 years of experience as a shepherd to argue that the shepherd theme pervades the entire psalm. MacMillan wrote a number of other books including "Wrestling with God" () consisting of addresses on the life of Jacob given to the Evangelical Movement of Wales
Psalm 116 Saint Paul in 2 Corinthians 4: 13. The Syriac church apply it to converts coming into the church. The Psalm has been used as public Prayer by Pope John Paul II, who called it a "Prayer of thanksgiving to the Lord" The Psalm is used in the Rule of St. Benedict, of Benedict of Nursia. However, Psalm 117 is now read in the Liturgy of the Hours. Henry calls it a "thanksgiving psalm", while Spurgeon saw it as A Psalm of Thanksgiving in the Person of Christ. " David Dickson, wrote "This Psalm is a threefold engagement of the Psalmist