NET

4 or when a person swears an oath, speaking thoughtlessly with his lips, whether to do evil or to do good, with regard to anything which the individual might speak thoughtlessly in an oath, even if he did not realize it, but he has later come to know it and is guilty with regard to one of these oaths—

Darby

4 Or if any one swear, talking rashly with the lips, to do evil or to do good, in everything that a man shall say rashly with an oath, and it be hid from him, when he knoweth [it], then is he guilty^D743 in one of these.

Darby Bible Notes

guilty - See Note, ver. 1.

KJV

4 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.

Strong's

4 Or if a soul^H5315 swear^H7650, pronouncing^H981 with his lips^H8193 to do evil^H7489, or to do good^H3190, whatsoever it be] be that a man^H120 shall pronounce^H981 with an oath^H7621, and it be hid^H5956 from him; when he knoweth^H3045 of it], it, then he shall be guilty^H816 in one^H259 of these.