Irresistible grace is a doctrine in Christian theology particularly associated with Calvinism, which teaches that the saving grace of God is effectually applied to those whom he has determined to save and, in God's timing, overcomes their resistance to obeying the call of the gospel, bringing them to faith in Christ. It is to be distinguished from prevenient grace, particularly associated with Arminianism, which teaches that the offer of salvation through grace does not act irresistibly in a purely cause-effect, deterministic method, but rather in an influence-and-response fashion that can be both freely accepted and freely denied.
"The certain mark by which a Christian community can be recognized is the preaching of the gospel in its purity."—Luther
Arminianism is a movement of Protestantism initiated in the early 17th century, based on the theological ideas of the Dutch Reformed theologian Jacobus Arminius and his historic supporters known as Remonstrants. Dutch Arminianism was originally articulated in the Remonstrance (1610), a theological statement submitted to the States General of the Netherlands. This expressed an attempt to moderate the doctrines of Calvinism related to its interpretation of predestination.
Portrait of Jacobus Arminius, from Kupferstich aus Theatrum Europaeum by Matthaeus Merian in 1662
Portrait of Simon Episcopius, (Anonymous)
Portrait of John Wesley, by George Romney
Allegory of the theological dispute between the Arminianists and their opponents by Abraham van der Eyk (1721), allegorically represents what many Arminians thought about the Synod: the Bible on the Arminian side was outweighed by the sword, representing the power of the state, and Calvin's Institutes on the other.