Exodus 20:24-25

24An altar of earth you shall make for me and sacrifice on it your burnt offerings and your peace offerings, your sheep and your oxen. aIn every place where I cause my name to be remembered I will come to you and bbless you. 25 cIf you make me an altar of stone, dyou shall not build it of hewn stones, for if you wield your tool on it you profane it.
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