5:68Say, “O People of the Scripture! You have no basis until you uphold the Torah, and the Gospel, and what is revealed to you from your Lord.” But what is revealed to you from your Lord will increase many of them in rebellion and disbelief, so do not be sorry for the disbelieving people.

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.