of God, there is constant need for "striving and vigilance, if we would persevere in the grace of God." Calvin thus balances his theological certitudes with pastoral warnings. . . . The believer must continually exercise faith and obedience to make "his calling and election sure." Others in the Reformed tradition followed Calvin's theology on election, regeneration, perseverance, and apostasy: Zacharias Ursinus (1534–1583); William Perkins (1558–1602); John Owen (1616–1683); John Gill (1697–1771); Jonathan Edwards (1703–1758); and George Whitefield (1714–1770). The Reformed confessions such as the Canons of the Synod of Dort (1619) and the Westminster Confession of Faith (1646) also express views parallel with Calvin's theology. Moderate Calvinism In his book, Reign of the Servant Kings: A Study of Eternal Security and the Final Significance of Man, Free Grace author Joseph Dillow seeks to chart a middle position between the Reformed Calvinist and Arminian position on apostasy. Dillow accepts "the Reformed position that those who are truly born again can never lose their salvation." But he also accepts the Arminian position that the warning passages concerning apostasy in the New Testament (e.g., Hebrews 6) are directed to genuine Christians, not merely professing Christians who are in reality unbelievers as reformed Calvinists assert. There are real dangers in these warning passages, but contrary to the Arminian view, it "is not [the] loss of salvation but severe divine discipline (physical death or worse) in the present time and loss of reward, and even rebuke, at the judgment seat of Christ." Dillow, like other Free Grace adherents, disagrees with reformed Calvinists and Arminians in holding that saving faith in Christ must continue in order for a person to obtain final salvation with God. The prominent authors for the Moderate Calvinist perspective are: R. T. Kendall; Zane C. Hodges; Charles C. Ryrie; Charles Stanley; Norman L. Geisler; and Tony Evans. Reformed Arminianism Reformed Arminianism derives its name from pastor and theologian James Arminius (1560–1609). Right up until his death, Arminius was undecided as to whether a believer could apostasize. However, he did affirm like Calvin that believers must continually exercise faith in order to obtain final salvation with God. After the death of Arminius, the Remonstrants maintained their leader's view that the believer has power through the indwelling presence of the Holy Spirit to be victorious over sin, Satan, and the world, and his uncertainty regarding the possibility of apostasy. This is evidenced in