And each [story] We relate to you from the news of the messengers is that by which We make firm your heart. And there has come to you, in this, the truth and an instruction and a reminder for the believers.
Every incident I relate to you, O Messenger, from the lives of the messengers before you is to make your heart firm on the truth and to strengthen it. In this sūrah, the truth, about which there is no doubt, has come to you. In it there has come to you a warning for the disbelievers and a reminder for the believers (who benefit from such a reminder).