For even the illustrious Grotius was at that very moment repudiating the notion that there could be two religions in one state.

"Difference in public worship," he said, "was in kingdoms pernicious, but in free commonwealths in the highest degree destructive." It was the struggle between Church and State for supremacy over the whole body politic.

"The Reformation," said Grotius, "was not brought about by synods, but by kings, princes, and magistrates." It was the same eternal story, the same terrible two-edged weapon, "Cujus reggio ejus religio," found in the arsenal of the first Reformers, and in every politico-religious arsenal of history.
"By an eternal decree of God," said Gomarus in accordance with Calvin, "it has been fixed who are to be saved and who damned.

By His decree some are drawn to faith and godliness, and, being drawn, can never fall away.
God leaves all the rest in the general corruption of human nature and their own misdeeds." "God has from eternity made this distinction in the fallen human race," said Arminius, "that He pardons those who desist from their sins and put their faith in Christ, and will give them eternal life, but will punish those who remain impenitent.

Moreover, it is pleasanter to God that all men should repent, and, coming to knowledge of truth, remain therein, but He compels none." This was the vital difference of dogma.