The hastily organised campaign focused on the ARP and its support of what SGP called state coercion, such as compulsory vaccination and insurance law.

Because some might object to him combining being polician and pastor, Kersten was not a candidate, but instead Barend Lemans and Pieter Gijze.

The party encouraged its members to send back their stamp cards which tracked their premiums.

His speeches in parliament regularly received media attention, for example when he opposed the 1928 Summer Olympics in Amsterdam.

The amendment received a majority, because it was supported by the Protestant Christian Historical Union (CHU), which was in cabinet together with the Catholic General League.

It resulted in more publicity and a third seat in the 1929 general election, which was taken by Cor van Dis sr. [nl].

[12] Kersten, Zandt and Van Dis formed the parliamentary group until the 1937 general election, when the SGP lost one seat.

In the 1956 general election, the SGP profited from the enlargement of parliament, and entered the Senate for the first time.

[15] In 1961 Zandt died and was succeeded by Van Dis sr. After ten years he stood down in favour of Reverend Hette Abma, who also stepped down after ten years, in favour of Henk van Rossum, a civil engineer.

They won one seat in the European Parliament, which was taken by SGP member Leen van der Waal, a mechanical engineer.

[15] As a Protestant fundamentalist[16] party the SGP draws much from its ideology from the Reformed Christian tradition, specifically the ecclesiastical doctrinal standards known as the Three Forms of Unity, including an unamended version of the Belgic Confession (Dutch: Nederlandse Geloofsbelijdenis).

It includes 21 words that were removed by the synod of the Reformed Churches in the Netherlands in 1905, which state that the government must "eliminate and eradicate all idolatry and false religion, so as to destroy the kingdom of Antichrist".

[23] In 1989 the party changed its principles, approving women voting if they can answer this to God in their conscience.

[24] In 2024, the SGP tabled a motion in the House of Representatives to abolish the so-called “transgender law” which had been brought in under the previous Dutch government and would enable people under the age of 16 to legally declare their gender without requiring a medical diagnosis.

[27] The SGP's support is concentrated geographically in the Dutch Bible Belt, a band of strongly Reformed and mostly rural municipalities ranging from Zeeland in the South via Goeree-Overflakkee and the Alblasserwaard in South Holland and the Veluwe in Gelderland to the Western part of Overijssel, around Staphorst.

[31] The highest organ of the SGP is the congress, which is formed by delegates from the municipal branches.

She then wrote to the national party board, after which she and Riet Grabijn-van Putten became member in 1985.

In 2003, the Clara Wichmann Institute and some other organisations sued the Dutch government, for subsidising SGP.

The district court of The Hague ruled that the party could no longer receive subsidies from the government, while it did not force the SGP to change it statutes.

Two weeks later, The Hague courts of appeal ruled on the first case that the SGP should also allow women's passive suffrage.

As a result, the SGP changed its internal regulations to allow women to be candidates in elections.

The SGP has close links with several other orthodox Protestant organisations, such as several Reformed churches and the newspaper Reformatorisch Dagblad.

In the 1984 European Parliamentary election the parties presented a common list and they won one seat in parliament.

Traditionally the SGP and the CU worked together closely as they were both based on Protestant Christian politics.