Or if a soul swear, pronouncing with his lips to do evil, or to do good, whatsoever it be that a man shall pronounce with an oath, and it be hid from him; when he knoweth of it, then he shall be guilty in one of these.

Because they provoked his spirit, so that he spake unadvisedly with his lips.

There is that speaketh like the piercings of a sword: but the tongue of the wise is health.