Luke 24:37

and they were so startled and terror-stricken that they were beginning to think that they saw a ghost.

Matthew 14:26-27

And when the disciples saw Him walking on the sea, they were terrified, and said, "It is a ghost!" And they screamed with fright.

Mark 6:49-50

But when they saw Him walking on the sea, they thought that it was a ghost and screamed aloud,

Luke 16:30

But he pleaded, 'No, father Abraham, but if someone went to them from the dead, they would repent.'

Acts 12:15

They said to her, "You are crazy!" But she persistently insisted that it was so. Then they said, "It is his guardian angel!"

Treasury of Scripture Knowledge

Summary

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

Bible References

General references

Luke 16:30
But he pleaded, 'No, father Abraham, but if someone went to them from the dead, they would repent.'
Matthew 14:26
And when the disciples saw Him walking on the sea, they were terrified, and said, "It is a ghost!" And they screamed with fright.
Mark 6:49
But when they saw Him walking on the sea, they thought that it was a ghost and screamed aloud,
Acts 12:15
They said to her, "You are crazy!" But she persistently insisted that it was so. Then they said, "It is his guardian angel!"