Moses Amyraut, also known as Amyraldus, pastor of the French Protestant theologian church and professor of theology at the University of Saumur from 1633, had soon thereafter published his Traité de la predestination, in which he tried to mitigate the harsh features of predestination by his Universalismus hypotheticus.

God, he teaches, predestines all men to happiness on condition of their having faith.

This modifications to Calvinist theology regarding the nature of Christ's atonement has come to be called Amyraldism or Amyraldianism.

Simply stated, Amyraldism holds that God has provided Christ's atonement for all alike, but seeing that none would believe on their own, he then elected those whom he will bring to faith in Christ, thereby preserving the Calvinist doctrine of unconditional election.

While this view maintains the particularity of sovereign grace in the application of the atonement, the belief that Christ paid for all the sins of all people even though not all are saved either requires double payment for sin, or one of the premises is wrong.

Charged with heresy, Amyraut had been acquitted at the national synod held at Alençon in 1637.

The charge is brought up again in 1644 at the national synod of Charenton, when he is again acquitted.