'Thousand' in the Bible

Jesus gave them permission. So the unclean spirits came out and went into the pigs. Then the herd rushed down the steep slope into the lake, and about two thousand were drowned in the lake.

Now there were five thousand men who ate the bread.

There were about four thousand who ate. Then he dismissed them.

When I broke the five loaves for the five thousand, how many baskets full of pieces did you pick up?" They replied, "Twelve."

"When I broke the seven loaves for the four thousand, how many baskets full of pieces did you pick up?" They replied, "Seven."