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 121 Psalm 121 Psalm 121 (Greek numbering: Psalm 120) is the 121st psalm from the Book of Psalms. It is one of 15 psalms categorized as "A song of ascents" ("Shir Hama'alot"), although unlike the others, it begins, "Shir LaMa'alot" ("A song "to" the ascents"). As a song of ascent it is recognized that this psalm was sung by pilgrims on their way to Jerusalem. At the beginning of the pilgrimage, in the mountainous region of the Judean Hills, the pilgrim makes sure the Lord's help. The one who trusts in the Lord is certain that He will bring him protection