'Holy' in the Bible

And Joshua said to the people, Make yourselves holy, for tomorrow the Lord will do works of wonder among you.

And the captain of the Lord's army said to Joshua, Take off your shoes from your feet, for the place where you are is holy. And Joshua did so.

But all the silver and gold and the vessels of brass and iron are holy to the Lord: they are to come into the store-house of the Lord.

Up! make the people holy; say to them, Make yourselves holy before tomorrow, for the Lord, the God of Israel, has said, There is a cursed thing among you, O Israel, and you will give way before your attackers in the fight till the cursed thing has been taken away from among you.

And Joshua said to the people, You are not able to be the servants of the Lord, for he is a holy God, a God who will not let his honour be given to another: he will have no mercy on your wrongdoing or your sins.

And Joshua put these words on record, writing them in the book of the law of God; and he took a great stone, and put it up there under the oak-tree which was in the holy place of the Lord.