פירוש על ויקרא 20:12

תבל עשו THEY HAVE WROUGHT תבל — i. e. they have done a shameful deed. Another interpretation is that תבל is connected with בלל to "intermingle" and signifies that they mingle (בּלל) the seed of the father with the seed of the son.

They mix. According to the first interpretation, the root [of the word] is תבל, which has [two meanings], an expression of despising, or a term referring to all the lands [of the world]. According to the second interpretation, its root is בלל.