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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Taking Acts 17:31 as its key, Austin-Sparks presents the risen Christ as God’s appointed Man—the sphere and standard by which all things are judged. Through Revelation and other Scriptures, he traces the Spirit’s work in forming a new-creation people, Christ’s brethren and bride, and a representative fullness of sonship. The message calls readers to seek not merely Christian knowledge or activity, but the likeness and life of Christ within. First published in "A Witness and A Testimony" magazines 1954-56 (Volumes 32-5 - 34-1).