'Thousands' in the Bible

And Solomon sent word to all Israel, to the captains of thousands and of hundreds and to the judges and to every chief in all Israel, heads of their families.

This is the number of them, listed by their families, the captains of thousands of Judah: Adnah, the captain, and with him three hundred thousand men of war;

Then Amaziah got all Judah together and put them in order by their families, even all Judah and Benjamin, under captains of thousands and captains of hundreds: and he had those of twenty years old and over numbered, and they came to three hundred thousand of the best fighting-men, trained for war and in the use of the spear and the body-cover.