(And this is the path of your Lord leading straight.) that is, Islam, that We have legislated for you, O Muhammad, by revealing this Qur'an to you, is Allah's straight path.
(We have detailed Our Ayat...) We have explained the Ayat and made them clear and plain,
(for a people who take heed) those who have sound comprehension and understand what Allah and His Messenger convey to them,
(For them will be the abode of peace) Paradise,
(with their Lord.) on the Day of Resurrection. Allah described Paradise as `the abode of peace', because its residents are safe due to their access to the straight path, which conforms to the way of the Prophets. And just as their way was not wicked, they earned the abode of peace which is free from all wickedness.
(And He will be their Wali) Protector, Supporter and Helper,
(because of what they used to do,) As reward for their good deeds, Allah has favored them and been generous with them, and awarded them Paradise.