This Bible contradiction is from the Skeptic's Annotated Bible.
Luke 21:11 View context
And great earthquakes shall be in divers places, and famines, and pestilences; and fearful sights and great signs shall there be from heaven.
Jeremiah 10:2 View context
Thus saith the LORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them.