'Womb,' as in Genesis 49:25, signifies the conjunction of good and truth. The term 'belly' is used where truths are being discussed, and the term 'womb' where good is discussed. 'An abortive womb' signifies falsities from evil in the place of truth from good.

(Odkazy: Arcana Coelestia 4918, 6433)

To “break” something creates an image that is different from “attacking,” “destroying,” or “shattering.” It is less emotional and violent in its intent; it is somewhat matter-of-fact. It is fitting, then, that “break” is used in the Bible primarily to illustrate the Lord’s destruction of evil desires and false ideas – something that must be done to preserve us from harm, but not something done with malice.