Longer Catechism (Orthodox) 6.203

Chapter 6 — Part I — Article IV (Of the Crucifixion, Death and Burial)

Section 203. Q. Why is it not only said in the Creed that Jesus Christ was crucified, but also added that he suffered? A. To show that his crucifixion was not only a semblance of suffering and death, as some heretics said, but a real suffering and death.