After nine years at Glasgow, he moved in 1962 to be Professor of Systematic Theology at Union Theological Seminary, New York. He became known very widely and lectured all around the world. During this period he also changed his ecclesiastical allegiance and became an Anglican priest.<\/p>\n
This was a gradual process influenced in two particular ways. In his book on spirituality he described the experience of attending the service of Benediction at the extreme Anglo-Catholic Church of St Andrew\u2019s, Willesden Green, just after the war. From then on an Anglican Catholic spirituality began to imbue his life.<\/p>\n
For many years he was a priest associate of the Order of the Holy Cross (an American Anglican Benedictine religious order).<\/p>\n
The other influence was his colleague, John Knox, the New Testament theologian. Knox became convinced that episcopacy was an essential element in the continuing expression of \u201cthe Christ myth\u201d\u009d. Knox became an Anglican, and Macquarrie followed him.<\/p>\n
In 1968, when he had been an Anglican for only three years, Macquarrie was invited to be a consultant at the Lambeth Conference, a role he again took ten years later. In 1970 he was appointed Lady Margaret Professor of Divinity at Oxford and Canon of Christ Church. After New York, he found Christ Church quaint and eccentric but attractive. He enjoyed its traditions and lifestyle. His and his wife\u2019s friendship and hospitality were widely appreciated.<\/p>\n
Macquarrie delivered the Gifford Lectures in 1979 and turned down the opportunity to become a bishop in the Scottish Episcopal Church. He served on the Church of England Doctrine Commission and was often engaged in ecumenical dialogue. In his Christian Unity and Christian Diversity (1975) he argued that both were needed in the Church. He could see a place for a reformed papacy in a united Church.<\/p>\n