This Bible contradiction is from the Skeptic's Annotated Bible.

Verses

They were frightened when they saw him.

Luke 24:37 View context

But they were terrified and affrighted, and supposed that they had seen a spirit.

They were gladdened.

John 20:20 View context

And when he had so said, he shewed unto them [his] hands and his side. Then were the disciples glad, when they saw the Lord.