'Thousand' in the Bible

And he let them do it. And the unclean spirits came out and went into the pigs; and the herd went rushing down a sharp slope into the sea, about two thousand of them; and they came to their death in the sea.

And those who took of the bread were five thousand men.

And there were about four thousand people: and he sent them away.

When I made a division of the five cakes of bread among the five thousand, what number of baskets full of broken bits did you take up? They said to him, Twelve.

And when the seven among the four thousand, what number of baskets full of broken bits did you take up? And they said to him, Seven.