Leviticus 5:4, 17

“ ‘Or someone might make a promise before the LORD without thinking. It might be a promise to do something bad or something good; it might be about anything. Even if he forgets about it, when he remembers, he will be guilty.

“If a person sins and does something the LORD has commanded not to be done, even if he does not know it, he is still guilty. He is responsible for his sin.