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.
Berean Study Bible (BSB) - Leviticus 5:4 >Or if someone swears thoughtlessly with his lips to do anything good or evil—in whatever matter a man may rashly pronounce an oath—even if he is unaware of it, when he realizes it, he is guilty in the matter.