Luke 24:37

But they were terrified and affrighted, and supposed that they had seen a spirit.
— Luke 24:37, King James Version

In other translations

World English Bible (WEB)

But they were terrified and filled with fear, and supposed that they saw a spirit.

American Standard Version (ASV)

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

Young's Literal Translation (YLT)

and being amazed, and becoming affrighted, they were thinking themselves to see a spirit.