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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Through Nehemiah’s rebuilding of Jerusalem’s wall, Austin-Sparks considers God’s work of recovering a full testimony to Christ, with the wall representing the spiritual condition and worship of God’s people. He traces the need for resurrection, the work and workers, and the peculiar warfare this recovery entails, calling readers to discern God’s purpose and co-operate with Him despite its conflict and cost. First published in "A Witness and A Testimony" magazines, 1953-1954.