If Satan is bound I would sure like to know where all the evil in the world in the last 2000 years has come from?
the heart of man is desperately wicked, who can know it?
man is fully capable of sinning on his own, without Satan involved at all.
The you would say Paul writing to the Corinthians got it wrong?
2 Corinthians 4:3 But if our gospel be hid, it is hid to them that are lost: 4 In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Now if Satan was chained to have no influence when Christ died on the cross how could he be blinding “the minds of them which believe not” and how would he still be called “the god of this world” by Paul?