Prophet, tell those you have taken captive: "If God knows of any good in your hearts, He will give you something better than what has been taken from you, and He will forgive you: God is Forgiving and Merciful." 70 And should they but seek to play false with thee - well, they were false to God [Himself] ere this: but He gave [the believers] mastery over them. And God is all-knowing, wise. 71 Surely those who believed and migrated and strove hard in the way of Allah with their possessions and their lives, and those that sheltered and helped them - they alone are the true allies of one another. And those who believed but did not migrate (to Dar-al-Islam), you are under no obligation of alliance unless they migrate. And should they seek help from you in the matter of religion, it is incumbent on you to provide help unless it be against a people with whom you have a pact. Allah is cognizant of all that you do. 72 The unbelievers are each other's friends. If you (the believers) do not keep the same among yourselves in the land, there will come into being widespread idolatry and great evil. 73 And they who have attained to faith, and who have forsaken the domain of evil and are striving hard in God's cause, as well as those who shelter and succour [them] - it is they, they who are truly believers! Forgiveness of sins awaits them, and a most excellent sustenance. 74 And those who have believed later on, and emigrated and struggled for God's sake alongside you are also a part of you. But as to blood relations, they are nearer one to another in the Book of God. God has full knowledge of all things. 75