Ockenga began his pastoral ministry in
New Jersey, at two Methodist churches. In 1931 he accepted an invitation from
Clarence E. Macartney to become a pastoral assistant at the First Presbyterian Church of Pittsburgh. During 1931 both Machen and Macartney recommended Ockenga for the position of pastor at Point Breeze Presbyterian Church, in Pittsburgh. That same year, Ockenga was ordained as a
Presbyterian minister, though he had earlier received ordination as a
Methodist. In 1936 he was called to be the associate pastor at
Park Street Church in Boston. In 1937, at the death of Park Street's longtime pastor,
Arcturus Z. Conrad, Ockenga was appointed his successor. He continued in that post until 1969. During his pastoral career at Park Street, Ockenga delivered many sermons that later formed the substance of various books he wrote. In all he wrote a dozen books dealing with biblical themes, and pastoral commentaries on biblical texts and Bible characters. His congregation thrived during much of his pastorate as he exercised considerable talents as a preacher, evangelist, leader and organizer. In 1950,
Park Street Church hosted
Billy Graham's (first mid-century transcontinental) evangelistic crusade, which was regarded as highly successful. On the strength of that event, both Graham and Ockenga then conducted an evangelistic tour of
New England. Ockenga later assisted Graham,
Nelson Bell and
Carl F. H. Henry in organizing the evangelical periodical
Christianity Today. He served as chairman of the board of the magazine until 1981. == Evangelical reformer and leader ==