Leviticus 5:3-5

Common English Bible

³ or by touching human uncleanness—any uncleanness that makes one unclean—and the fact goes unknown, but you later learn of it and become guilty of sin;

⁴ or by carelessly swearing to do something, whether bad or good—whatever one might swear carelessly—and the fact goes unknown, but you later learn of it and become guilty of sin concerning one of these things—