1 Samuel 12:21

For then should ye go after vain things. The word for is omitted in all the ancient versions, and the sense is complete without it: "And turn ye not aside after tohu," the word used in Genesis 1:1 , and there translated "without form." It means anything empty, void, and so is often used, as here, for "an idol," because, as St. Paul says, "an idol is nothing in the world" ( 1 Corinthians 8:4 ). So Isaiah ( Isaiah 44:9 ) calls the makers of idols vanity, Hebrew, tohu, i.e. empty people, with no sense in them. The word is used again at the end of the verse— which idols cannot profit nor deliver; for they are tohu, emptiness.