'Ten' in the Bible

“Please test your servants for ten days, and let us be given some vegetables to eat and water to drink.

So he listened to them in this matter and tested them for ten days.

At the end of ten days their appearance seemed better and they were fatter than all the youths who had been eating the king’s choice food.

As for every matter of wisdom and understanding about which the king consulted them, he found them ten times better than all the magicians and conjurers who were in all his realm.

After this I kept looking in the night visions, and behold, a fourth beast, dreadful and terrifying and extremely strong; and it had large iron teeth. It devoured and crushed and trampled down the remainder with its feet; and it was different from all the beasts that were before it, and it had ten horns.

and the meaning of the ten horns that were on its head and the other horn which came up, and before which three of them fell, namely, that horn which had eyes and a mouth uttering great boasts and which was larger in appearance than its associates.

As for the ten horns, out of this kingdom ten kings will arise; and another will arise after them, and he will be different from the previous ones and will subdue three kings.