Has not the potter power over the clay, of the same lump to make one vessel unto honor, and another unto dishonor?
All Commentaries on Romans 9:21 Go To Romans 9
Diodorus of Tarsus
AD 390
Do not dare to condemn God or imagine that he showed mercy on one and hardened another by accident, for it was according to the power of his foreknowledge that he gave each one his due. Nor is he guilty because he knew in advance what would happen, but rather each of those who was foreknown in this way is responsible for his own actions, whether good or evil. .