Some in the early church taught the Ransom Theory of the Atonement as fact, that Jesus Christ paid a "ransom" to the devil for the lost souls of sinners! This is completely against what the Bible Teaches.
Some in the early church, also accepted some of the "Apocryphal" books Inspired by God the Holy Spirit, and actually used them for their doctrines!
HOW can you say that there were "biblical"?
The Ransom view is that a ransom was paid. It is questionable that Origen literally meant "Satan" (in sermons "Satan" was often used to symbolize the powers of sin and death) but by the end of the 2nd Century this was a common thought among the laity.
Others argued that Christ paid a ransom to death, others emphasized that ransom refers to us being ransomed and not a ransom payment recieved
I doubt many believers would sit comfortable with the claim Christ ransomed us from God.
That said, I am not saying they were biblical in all of their ideas.
I am saying g Penal Substitution Theory is no less biblical than the teaching that God was dangling Christ as bait for Satan. The Theory is simply foreign to Scripture.
I believe the closer we stick to what is written the better.