John Wesley on Deuteronomy 25:17

Out of Egypt - Which circumstance greatly aggravates their sin, that they should do thus to a people, who had been long exercised with sore afflictions, to whom pity was due by the laws of nature and humanity, and for whose rescue God had in so glorious a manner appeared, which they could not be ignorant of. So this was barbarousness to Israel, and setting the great Jehovah at defiance.