There were a group of those who had embraced Islam in Mecca, whom the devil made feel despair due to what they saw of the dominance of Quraysh and their oppression of the Muslims, and the harm they inflicted upon them. And when they were promised that if they returned from the appointments, they would break what they had pledged to the Messenger of Allah, blessings and peace be upon him, Allah made them steadfast. And do not exchange or substitute the covenant of Allah and the pledge of the Messenger of Allah, blessings and peace be upon him, for a small price, a trivial gain of this world. It is what Quraysh were promising them and enticing them with if they returned. Indeed, what is with Allah from your showing and your gains, and from the reward of the Hereafter, is better for you.