Free will in antiquity
In Plato's Gorgias (and in the Protagoras 345c4-e6), Socrates argues that no one does wrong willingly, one of the most famous doctrines to be associated with him. When framed in modern (Western) terms, the implication is that it is ignorance, rather that free individual agency, that is responsible for morally wrong actions.
Free will in theology
The Orthodox Church holds to the teaching of synergy (συνεργός, meaning working together), which says that man has the freedom to, and must if he wants to be saved, choose to accept and work with the grace of God. St. John Cassian, a 4th-century Church Father and pupil of St. John Chrysostom, articulated this view and all the Eastern Fathers embraced it. He taught that "Divine grace is necessary to enable a sinner to return unto God and live, yet man must first, of himself, desire and attempt to choose and obey God", and that "Divine grace is indispensable for salvation, but it does not necessarily need to precede a free human choice, because, despite the weakness of human volition, the will can take the initiative toward God.".