5:13Because of their breaking their pledge, We cursed them, and made their hearts hard. They twist the words out of their context, and they disregarded some of what they were reminded of. You will always witness deceit from them, except for a few of them. But pardon them, and overlook. God loves the doers of good.

5:89God does not hold you accountable for your unintended oaths, but He holds you accountable for your binding oaths. The atonement for it is by feeding ten needy people from the average of what you feed your families, or by clothing them, or by freeing a slave. Anyone who lacks the means shall fast for three days. That is the atonement for breaking your oaths when you have sworn them. So keep your oaths. Thus God makes clear His Revelations to you, that you may be grateful.