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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Opening with Romans 11:33 and Ephesians 3:8, Austin-Sparks explores the unsearchable riches of Christ through grace, the Spirit’s power, redemption, wisdom, election, and the summing up of all things in Christ. He also turns to the riches of glory, Christ as the heavenly bread, and Paul’s pathway through opposition, calling readers to seek spiritual wealth in God’s dealings and to know Christ more deeply. A Series of Addresses Given by T. Austin-Sparks.