B. B. Warfield in his book The Plan of Salvation identifies and exposes autosoterism: “All religions except the Christian are autosoteric... Pelagius, no mean systematizer, built up a complete autosoteric system...” Warfield quotes Pelagius: "I say," declares Pelagius, "that man is able to be without sin, and that he is able to keep the commandments of God." .... This was the first purely autosoteric scheme published in the Church, and it is thoroughly typical of all that has succeeded it from that day to this” (B. B. Warfield. quoted from Monergism https://www.monergism.com/thethreshold/articles/onsite/WarfieldPlan02.html).