TSK · Joshua 9:18

But if you shall forbear to vow, it shall be no sin in you.

When you come into your neighbor's vineyard, then you may eat of grapes your fill at your own pleasure; but you shall not put any in your vessel.

In whose eyes a vile man is despised, but who honors those who fear Yahweh; he who keeps an oath even when it hurts, and doesn't change;

Don't allow your mouth to lead you into sin. Don't protest before the messenger that this was a mistake. Why should God be angry at your voice, and destroy the work of your hands?