'Ghost' in the Bible

When the disciples saw him walking on the water they were terrified and said, "It's a ghost!" and cried out with fear.

When they saw him walking on the water they thought he was a ghost. They cried out,

But they were startled and terrified, thinking they saw a ghost.

Look at my hands and my feet; it's me! Touch me and see; a ghost does not have flesh and bones like you see I have."