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)
Free: get it — here or in the Christian Classics app — and it's yours to read and listen to on every device you sign in to. About a tenth of it can be read here first, free.
Through the imagery of Israel’s priesthood, Austin-Sparks considers the spiritual meaning of service and the calling of God’s people as a holy, royal priesthood. Beginning with Christ’s priestly ministry and the Father’s love for Him, the chapters draw on Exodus, Numbers, Luke, and 1 Peter to describe a vocation shaped by the Cross and the Spirit, and call believers beyond outwardly good service into God’s full purpose and Christlike character. First published in "A Witness and A Testimony" magazines, 1955-56.