'Holy' in the Bible

And the prince of Jehovah's host said unto Joshua, Put off thy shoe from off thy foot; for the place whereon thou standest is holy. And Joshua did so.

But all the silver, and gold, and vessels of brass and iron, are holy unto Jehovah: they shall come into the treasury of Jehovah.

And Joshua said unto the people, Ye cannot serve Jehovah; for he is a holy God; he is a jealous God; he will not forgive your transgression nor your sins.