“Reasoning from the Scriptures” tells us “any ministry which fails to equip the saints to be able to discern the difference between truth and error, light and darkness, and good and evil, is not a genuinely biblical ministry but more like a positive only, stand against nothing, sugar-coated lie.”
That is why Calvinists, and all Protestants, should zealously guard the truth that one is saved by works. Justification is by faith alone (sola fide), but not a faith that is alone, that is, good works are the compulsory – and, says the Calvinist, the natural – fruit of faith. Salvation comprises both faith and works.
See A Calvinist drools over the ORDO SALUTIS: Justification, and Salvation.