Whatever it's convenient to categorize them as in order to play up a single factor like their religion, any who remained Presbyterian after the war were far different Presbyterians with far different views on Calvinism than they were prior to it. Usually they even clearly differentiated themselves from mainstream Presbyterians from then on which is what led to a split in the US Presbyterian church in the early 1800s. A great many left the Presbyterian church and became primitive Baptists who embraced an altered form of Calvinism doctrine. They, like Calvinists, didn't believe in missionary work, the very thing the Baptist church has always considered paramount leading to a split among the Baptists due to the large number of former Presbyterians not agreeing with the Baptist mainstream.
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Calvinists didn't believe in missionary work?
First, this is what Calvin himself said about evangelism: “It is no small consolation to godly teachers that, although the larger part of the world does not listen to Christ, He has His sheep whom He knows and by whom He is also known. They (all preachers) must do their utmost to bring the whole world into Christ’s fold, but when they do not succeed as they would wish, they must be satisfied with the single thought that those who are sheep will be collected together by their work.” (Calvin’s Commentary on John 17:9).Second, Calvin evangelized neighboring France. At the beginning of the reformation in 1555, there was only one church. In 1562 Calvin’s movement had led to the formation of 2150 local protestant congregations in an area hostile to protestants Christians.
Third, Calvin himself sent out more worldwide missionaries than most Arminian churches today. Historians have called his Geneva a “hub of vast missionary enterprise” (Frank A. James, III, “Calvin and Missions,” Christian History, 5 no. 4 (Fall 1986) : 23.) For example, historical records show that just in one year, 142 missionaries were sent out by Calvin to go around the world and reach people with the gospel message. Some were even sent to Brazil where they were killed. (Hughes, “John Calvin: D. O. M,” 46; cf. also McGrath, 184).
Fourth, the modern missionary movement as we have come to know it, was founded and stimulated by William Carey, a Calvinist! Today he is called “the father of modern missions” after spending 58 years of his life on Indian soil preaching the gospel of Jesus Christ. In fact, a great majority of early missionaries were Calvinists, men like David Brainerd, John G. Paton, Henry Martyn and a host of others. Hundreds of Calvinists were martyred and died sharing the good news of Jesus to sinners. Looking through the history of our modern world we can see that at all times Calvinists have eagerly taken the gospel to nations and people all over the world, from missionaries who died in small tribes, to great revivals and awakenings that swept the western world, reformed Christians have been at the forefront of mission and evangelism work, proclaiming salvation to those enslaved to sin.
With apostle Paul reformed Christians say ”For this reason I endure all things for the sake of those who are chosen, so that they also may obtain the salvation which is in Christ Jesus and with it eternal glory.” (2 Tim 2:10)
7 misconceptions people hold about Calvinism
And this is not even to mention the tremendous missionary ministries of men such as Gerorge Whitfield, Theodore Frelinghuysen, a Dutch reformed Pietist, Gilbert Tennent and Jonathan Edwards, staunch Calvinists all, which were so used by God in what we know as the Great Awakening.
Cordially,