He then returned to Bordeaux, and in the beginning of 1604 he was nominated one of the students of divinity who were maintained, at the expense of the church, and who for the period of four years were at liberty to prosecute their studies in any Protestant seminary.

In this university, on 4 April 1608, he gave a public proof of his ability by maintaining a series of theses, De triplici Dei cum Homine Foedere, which were printed among his works.

For a short time, he read private lectures on divinity in London; and in 1622 the king appointed him principal of the University of Glasgow in the room of Robert Boyd, who had been removed from his office in consequence of his adherence to Presbyterianism.

He withdrew to the neighboring town of Moissac; but he soon returned to Montauban, and a few days afterwards he died at the age of about forty-six and perhaps at the hands of an assassin.

This peculiar doctrine of grace and free will was adopted by Amyraut, Cappel, Bochart, Daillé and others of the more learned among the Reformed ministers.