'Thousand' in the Bible

And forthwith Jesus gave them leave. And the unclean spirits went out, and entered into the swine: and the herd ran violently down a steep place into the sea, (they were about two thousand;) and were choked in the sea.

And they that did eat of the loaves were about five thousand men.

And they that had eaten were about four thousand: and he sent them away.

When I brake the five loaves among five thousand, how many baskets full of fragments took ye up? They say unto him, Twelve.

And when the seven among four thousand, how many baskets full of fragments took ye up? And they said, Seven.