Theodore Austin-Sparks (1888–1971) was a British evangelist and author. Born in London, he became a Christian at seventeen while listening to street-preachers in Glasgow, and was ordained a Baptist minister at twenty-four. In 1926 he left the denomination and, with like-minded Christians, founded a conference and training centre at Honor Oak in south-east London. From there he published the free magazine "A Witness and A Testimony" until his death, and his conference ministry took him across Europe, North America and Asia. He asked that his messages be shared freely and word for word. Source: Wikipedia (summarized; CC BY-SA)
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“Glorying in the Lord” considers Paul’s correction of the Corinthian church, where worldly wisdom turned Christianity into philosophy and fostered division and spiritual disorder. Opening with 1 Corinthians 1–3, it contrasts earthly wisdom with the wisdom from above and stresses that Christ must be apprehended as a living reality, not merely as doctrine. The appeal is to build a Christian life on Christ and to express God’s full thought for his people. From "A Witness and A Testimony" magazines, 1936 (Volumes 14-3 - 14-6).