If any of your women is guilty of unnatural offence, bring four of your witnesses to give evidence; if they testify against them, retain them in the houses until death overtakes them or God provides some other way for them. 15 And as for the two of you who are guilty thereof, punish them both. And if they repent and improve, then let them be. Lo! Allah is ever relenting, Merciful. 16 God does accept repentance, but only of those who are guilty of an evil out of ignorance yet quickly repent, and God turns to them again, for God is all-knowing and all-wise. 17 Forgiveness is not for those who continue to do evil deeds until, when death comes upon one of them, he says: "Now I repent!" nor from those who die as deniers of the truth. We have prepared a painful punishment for them. 18 O you who believe! it is not lawful for you that you should take women as heritage against (their) will, and do not straiten them in order that you may take part of what you have given them, unless they are guilty of manifest indecency, and treat them kindly; then if you hate them, it may be that you dislike a thing while Allah has placed abundant good in it. 19 And if ye wish to exchange one wife for another and ye have given unto one of them a sum of money (however great), take nothing from it. Would ye take it by the way of calumny and open wrong? 20 And how can you take it when one of you has already gone in to the other and they have made with you a firm covenant? 21 And do not marry the women who were wedded to your fathers (and grand fathers), except what has already passed; that is indeed an act of shame and great wrong; and an evil way. 22