This Bible contradiction is from the Skeptic's Annotated Bible.
Only God can do great wonders.
Psalm 136:4 View context
To him who alone doeth great wonders: for his mercy [endureth] for ever.
Satan can also do great wonders.
2 Thessalonians 2:9 View context
[Even him], whose coming is after the working of Satan with all power and signs and lying wonders,