This book is not designed to discuss "the (many-RB) doctrines which the Reformed Presbyterian church holds in common with others," but is written to set forth RP distinctives. It tackles its subject from three major heads:

• "Social Covenanting"
• "The Dominion of Christ" and
• "The Universal Application of Scripture (civil as well as religious)"

It shows that while these doctrines "are held by many, as abstract doctrines of divine truth, they are not embodied in the testimony of any other Christian denomination: nor made necessary to ministerial or Christian fellowship. Although other individuals may hold these doctrines, it is a 'distinctive' feature of the RPC to embody them in her testimony; and to make them terms of communion."

It also explains how these are the same distinctives that were maintained "at the era of the reformation, (when) the covenanted church of Scotland bore a distinguished testimony for all the offices of Christ, as prophet, priest and king: and for the pure doctrines, worship, discipline, and government of the house of God."

The author states that "the great object aimed at is to help forward the glorious triumph of the Messiah, so beautifully described in the 72nd Psalm. When 'all Kings shall fall down before him; and all nations shall serve him.'"