'Holy' in the Bible

And the captain of Jehovah's army said to Joshua, Loose thy sandal from off thy foot: for the place whereon thou standest is holy. And Joshua did so.

And all the silver, and gold, and vessels of copper and iron, shall be holy to Jehovah; they shall come into the treasury of Jehovah.

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