You tell them: "In all the commands revealed to me I find nothing which men have been forbidden to eat except carrion and running blood and flesh of the swine for it is unclean, or meat consecrated in the name of some other than God, which is profane. But if one is constrained to eat of these without craving or reverting to it, then surely your Lord is forgiving and kind." 145 We made unlawful for the Jews all animals with claws or nails, and the fat of the oxen and sheep, except that on their backs or their intestines, or which remains attached to their bones. This was the punishment for their insubordination; and what We say is true. 146 If they call you a liar, tell them infinite is the mercy of your Lord; but His vengeance will not be turned back from the sinners. 147 THOSE who are bent on ascribing divinity to aught beside God will say: "Had God so willed, we would not have ascribed divinity to aught but Him, nor would our forefathers [have done so]; and neither would we have declared as forbidden anything [that He has allowed]." Even so did those who lived before them give the lie to the truth - until they came to taste Our punishment! Say: "Have you any [certain] knowledge which you could proffer to us? You follow but [other people's] conjectures, and you yourselves do nothing but guess." 148 Say, "God alone has the conclusive proof. If He had willed, He could have guided every one of you." 149 Say, [O Muhammad], "Bring forward your witnesses who will testify that Allah has prohibited this." And if they testify, do not testify with them. And do not follow the desires of those who deny Our verses and those who do not believe in the Hereafter, while they equate [others] with their Lord. 150