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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Reading John 13–21, Austin-Sparks traces God’s eternal purpose to express Himself through a people joined to Christ. He opens with the church’s vocation in the foot-washing and new commandment, then follows sonship, the Cross, and resurrection as the way this purpose is realised. The reader is called to live in fellowship with the risen Christ and serve as a witness to Him.