And you shall set bounds to the people round about, saying, Take heed to yourselves, that you go not up into the mount, or touch the border of it: whoever touches the mount shall be surely put to death:
Keep your foot when you go to the house of God, and be more ready to hear, than to give the sacrifice of fools: for they consider not that they do evil.
And their nobles shall be of themselves, and their governor shall proceed from the middle of them; and I will cause him to draw near, and he shall approach to me: for who is this that engaged his heart to approach to me? said the LORD.
Then Moses said to Aaron, This is it that the LORD spoke, saying, I will be sanctified in them that come near me, and before all the people I will be glorified. And Aaron held his peace.
For the LORD your God walks in the middle of your camp, to deliver you, and to give up your enemies before you; therefore shall your camp be holy: that he see no unclean thing in you, and turn away from you.