It is written: "An altar of earth thou shalt make unto Me . . . And if thou make Me an altar of stone, thou shalt not build it of hewn stones, for if thou lift up thy tool upon it, thou hast profaned it."
The altar of earth is the altar of silence, which pleases God beyond all else. But if you do make an altar of words, do not hew and chisel them, for such artifice would profane it.