If you make an altar of stones for me, do not build it with dressed stones, for you will defile it if you use a tool on it.
And do not go up to my altar on steps, or your private parts may be exposed.’Exodus 20:26 NIV
“‘Make an altar of earth for me and sacrifice on it your burnt offerings and fellowship offerings, your sheep and goats and your cattle. Wherever I cause my name to be honored, I will come to you and bless you.Exodus 20:24 NIV