On May 1 the Netherland confession and the Heidelberg catechism were unanimously adopted, as being in conformity with Holy Scripture, and as fixing the standard of orthodox teaching.

The Synod was dissolved eight days later.

The final session was the 154th; and this great assembly of delegates from many lands, the nearest approach to a general council of the Protestant churches that has ever been held, came to a close amidst much festivity and no small congratulation.

No time was lost in taking action by the dominant party against their opponents.

Two hundred Remonstrant preachers were driven into exile; and the congregations were treated with the same spirit of intolerance as had hitherto been the lot of the Catholics, and were forbidden the exercise of public worship.
After the Advocate's death, except for the persecution directed against the Remonstrant party, the course of public affairs went on smoothly.
Maurice, who by the death of his brother, Philip William, had in February, 1618, become Prince of Orange, was virtually sovereign in the United Provinces.