Leviticus 5:5 in the King James Version
And it shall be, when he shall be guilty in one of these things, that he shall confess that he hath sinned in that thing:
Context
4 “‘Or if anyone swears rashly with his lips to do evil or to do good—whatever it is that a man might utter rashly with an oath, and it is hidden from him—when he knows of it, then he will be guilty of one of these.
5 It shall be, when he is guilty of one of these, he shall confess that in which he has sinned;
6 and he shall bring his trespass offering to the LORD for his sin which he has sinned: a female from the flock, a lamb or a goat, for a sin offering; and the priest shall make atonement for him concerning his sin.