Orthodox Problems with Penal Substitution by Alexander Renault (from his book “Reconsidering Tulip” )

The penal substitution view was completely absent from the church for over 1,000 years. It was only in the 11th century that Anselm of Canterbury began to introduce the groundwork for this kind of theology to the West. Nor was it fully developed into the doctrine we now know as penal substitution until the 16th-century Reformers came along. To this day it has never been accepted in the east (nor has it ever been fully accepted by the Roman Catholics).