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 Acts 1, Austin-Sparks argues that the risen Christ’s living presence—not doctrine or service alone—is the source and measure of spiritual life. Drawing on the contrast between Adam and Christ and on Jesus’ hidden resources in fellowship with the Father, he traces the life, freedom, rest, and sonship available through union with Christ. The reader is called to receive that provision by faith and let it bear fruit in the Church through obedience.