The Reformed Presbyterian Church has held to the Westminster Confession and Catechisms since the 17th century.
Instead of adopting revised versions of the Confession, as has been done by other Presbyterian churches in North America, the RPCNA instead keeps the original text but states objections in its official testimony, which is printed side-by-side with the Confession.
Today, only three small portions of the original Confession are denied by the RPCNA, besides qualifying the Confession's naming of the Pope as Antichrist.
As a result of adhering to these creeds, the RPCNA is doctrinally close to other Reformed denominations.

Historically, the "distinctive principles" of Reformed Presbyterians were political: they held to a continuing obligation of the Covenants, both National and Solemn League, upon all who had sworn them and upon all their descendants, and the belief that governmental rejection of such documents caused the government to become immoral or even undeserving of obedience.
This led them to reject the government of Scotland after the Glorious Revolution, as well as those of Ireland and England, which had also acknowledged but later dropped the Covenants.
Furthermore, as the American colonies had been under English jurisdiction at the time of the Solemn League, the United States was held as responsible to uphold the Covenants.
Since the Constitution contains no reference to Christ or to the Covenants, Reformed Presbyterians refused to vote, hold governmental office, serve on juries, or swear any oath of loyalty to the United States government or any lower government, and Canadian members similarly refrained from such activities.
Members who did participate in the political process would typically be disciplined by their congregational session.
 Although these principles were held firmly for many decades, the official denominational position was changed, beginning in the 1960s; by 1969, the official position allowed members to vote and run for office.
Some members yet continue the historic dissenting positions, but the majority of members participate like members of other conservative Christian denominations, and Reformed Presbyterian Bob Lyon served in the Kansas Senate from 2001 to 2005.

Another long-held belief distinguishing the RPCNA from other churches was its prohibition of occasional hearing, the practice of attending worship services or preaching by ministers of other denominations.
Although the practice is permitted today, it was long prohibited.
For example, records from an eastern Pennsylvania congregation note that two women were "severely admonished" for attending a weekday Methodist camp-meeting in 1821.
The reasons for this prohibition were historical grounds: the Church of Scotland, the continuation of which the Reformed Presbyterian Church considered itself, had been established as the state church throughout Great Britain.
As the Reformed Presbyterian Church believed that that state church had never officially been disestablished in a legal manner, it considered other churches to have no legal right to exist.
Therefore, attending a worship service of any other church amounted to participation in an illegal organization.

The denomination has always believed in the "Regulative Principle of Worship" and applied it to require a cappella singing of the Psalms only in worship.
While this practice was not unusual in past centuries, many other denominations have permitted hymns and instrumental music over the years.
As a result, the RPCNA's manner of worship is quite distinctive today, and with the change in the official position on political action, the manner of worship is the chief distinction of the RPCNA today.

Although alcohol use was prohibited for all members for many decades, in recent years both ordinary members and ordained officers have been permitted to use it.
Chapter 26 of the RPCNA Testimony states that abstinence from alcohol is still a fitting choice for Christians.

Along with many other conservative denominations, the RPCNA interprets the Bible as requiring all elders to be male.
The Reformed Presbyterian Church has held to the Westminster Confession and Catechisms since the 17th century. Instead of adopting revised versions of the Confession, as has been done by other Presbyterian churches in North America, the RPCNA instead keeps the original text but states objections in its official testimony, which is printed side-by-side with the Confession. Today, only three small portions of the original Confession are denied by the RPCNA, besides qualifying the Confession's naming of the Pope as Antichrist. As a result of adhering to these creeds, the RPCNA is doctrinally close to other Reformed denominations.
Historically, the "distinctive principles" of Reformed Presbyterians were political: they held to a continuing obligation of the Covenants, both National and Solemn League, upon all who had sworn them and upon all their descendants, and the belief that governmental rejection of such documents caused the government to become immoral or even undeserving of obedience. This led them to reject the government of Scotland after the Glorious Revolution, as well as those of Ireland and England, which had also acknowledged but later dropped the Covenants. Furthermore, as the American colonies had been under English jurisdiction at the time of the Solemn League, the United States was held as responsible to uphold the Covenants. Since the Constitution contains no reference to Christ or to the Covenants, Reformed Presbyterians refused to vote, hold governmental office, serve on juries, or swear any oath of loyalty to the United States government or any lower government, and Canadian members similarly refrained from such activities. Members who did participate in the political process would typically be disciplined by their congregational session.  Although these principles were held firmly for many decades, the official denominational position was changed, beginning in the 1960s; by 1969, the official position allowed members to vote and run for office. Some members yet continue the historic dissenting positions, but the majority of members participate like members of other conservative Christian denominations, and Reformed Presbyterian Bob Lyon served in the Kansas Senate from 2001 to 2005.
Another long-held belief distinguishing the RPCNA from other churches was its prohibition of occasional hearing, the practice of attending worship services or preaching by ministers of other denominations. Although the practice is permitted today, it was long prohibited. For example, records from an eastern Pennsylvania congregation note that two women were "severely admonished" for attending a weekday Methodist camp-meeting in 1821. The reasons for this prohibition were historical grounds: the Church of Scotland, the continuation of which the Reformed Presbyterian Church considered itself, had been established as the state church throughout Great Britain. As the Reformed Presbyterian Church believed that that state church had never officially been disestablished in a legal manner, it considered other churches to have no legal right to exist. Therefore, attending a worship service of any other church amounted to participation in an illegal organization.
The denomination has always believed in the "Regulative Principle of Worship" and applied it to require a cappella singing of the Psalms only in worship. While this practice was not unusual in past centuries, many other denominations have permitted hymns and instrumental music over the years. As a result, the RPCNA's manner of worship is quite distinctive today, and with the change in the official position on political action, the manner of worship is the chief distinction of the RPCNA today.
Although alcohol use was prohibited for all members for many decades, in recent years both ordinary members and ordained officers have been permitted to use it. Chapter 26 of the RPCNA Testimony states that abstinence from alcohol is still a fitting choice for Christians.
Along with many other conservative denominations, the RPCNA interprets the Bible as requiring all elders to be male.
Reformed Presbyterian Church of North America