In the middle of the 20th century, evangelical Walter Martin and the Christian Research Institute concluded that the Seventh-day Adventist church is a legitimate Christian body with some heterodox doctrines and stated, "They are sound on the great New Testament doctrines including grace and redemption through the vicarious offering of Jesus Christ 'once for all'. However, other scholars such as Calvinist theologian Anthony A. Hoekema, who did not agree with the Adventist view that Jacobus Arminius's theology was in line with Adventism, believed that Adventism was based on a Wesleyan/Arminian stream of theology, and grouped Seventh-day Adventism with Mormonism, Jehovah's Witnesses and Christian Science in his book "The Four Major Cults".