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 149 Psalm 149 Psalm 149 is the 149th psalm of the Book of Psalms, a hymn as the book's penultimate piece. The first verse of the psalm calls to praise in singing, "Sing a new song unto the Lord". Similar to Psalm 96 and Psalm 98 (Cantate Domino), Psalm 149 calls to praise God in music and dance, because he has chosen his people and helped them to victory. Psalm 149 also calls to be ready to fight. The psalm is a regular part of Jewish, Catholic, and Anglican liturgies. It has been set to music often, notably by Antonín Dvořák