Numbers 30:3 "He shall not break his word, he shall do according to all that proceeds out of his mouth"

Sometimes, we are not careful enough about what we say and then, we are forced to explain ourselves because of a misunderstanding.

Often we'll hear someone remark:

"Oh! I wasn't even thinking when I said that!" "Did I say that?" I didn't really mean it." "I just said the first thing that came to my mind!"

The Torah teaches us to be responsible for what we say.

If a person made a commitment to do something or take upon himself some job or responsibility, he should not go back on his word.