The RPCES was formed in 1965 with the union of the Reformed Presbyterian Church, General Synod and the Evangelical Presbyterian Church at Covenant College in Lookout Mountain, TN held joint Synod meeting. The uniting service was held at 10:00 a.m. on Tuesday, April 6, 1965, and this service was followed by sessions of the 143rd General Synod of the Reformed Presbyterian Church, Evangelical Synod. The business of the united synods was concluded on April 8, 1965. The denomination experienced immediate growth. The denomination subscribed to the 1647 version of the Westminster Confession of Faith; however, the plan of union to form the denomination, in a concession to the largely premillennial Evangelical Presbyterian Church, called for modifications to the Larger Catechism to make it more hospitable to those who held to a premillennial eschatology. It practiced traditional worship and was conservative in its theology. The RPCES had also planned to include resolutions warning members against the evils of dancing, liquor, television, gambling and tobacco, again, in a concession to the Evangelical Presbyterian Church's Bible Presbyterian heritage, yet these resolutions, despite being a basis for the merger, had no binding legislative power. The Orthodox Presbyterian Church invited the RPCES to organic union third time The 42nd General Assembly of the OPC voted 95-42 in favour of the proposed union, but the vote in the RPCES failed to gain the two-thirds majority required to approve the plan.
Almost all United Presbyterian Church of North America-heritage congregations - which was more conservative than the PC-USA - entered into the present Presbyterian Church , but some of more evangelical conservative orientation departed in the 1970s to denominations such as the Reformed Presbyterian Church, Evangelical Synod later the Presbyterian Church in America and the EPC. In 1979, the General Assembly of the United Presbyterian Church in the United States of America ruled that all congregations must elect both men and women to the office of ruling elder. The ruling resulted in an exodus of approximately forty congregations, including Tenth Presbyterian Church in Philadelphia, Tenth and with many others affiliated with the Reformed Presbyterian Church, Evangelical Synod. At the time of the merger the RPCES had 25, 718 communicant members in 187 congregations served by 400 teaching elders. The PCA had 519 churches, 91,060 communicant members, and 480 teaching elders. After the merger the PCA membership was 706 churches, 116,788 communicant members, and 1,276 teaching elders.
Merger
After three years of talks, in 1982, the RPCES was received into the Presbyterian Church in America in a process known as "joining and receiving." At that time the church had 189 congregations with 25,000 communicant members and 482 ministers. From its founding date, the RPCES experienced a rapid membership growth, more than 400 percent. The Evangelical Synod had 17 presbyteries; 13 of those voted for, and 4 voted against, the PCA union. Notable members were Francis Schaeffer, Gordon H. Clark, and Robert G. Rayburn.
