As a radical Protestant conservative party, the SGP draws much from its ideology from the reformed tradition, specifically the ecclesiastical doctrinal standards known as the Three Forms of Unity, including an unamended version of the Belgic Confession (Nederlandse Geloofsbelijdenis).
In controversial discussions in the Dutch House of Representatives (Tweede Kamer), the SGP often stresses the importance of the rule of law, parliamentary procedure and rules of order, regardless of ideological agreement.