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7 Tu ne prendras point le nom de l'Eternel, ton Dieu, en vain; car l'Eternel ne laissera point impuni celui qui prendra son nom en vain.
In Isaiah 9:10, this signifies what is false or fictitious. (Arcana Coelestia 1296)
10 "The bricks have fallen, but we will build with cut stone. The sycamore fig trees have been cut down, but we will put cedars in their place."