الَّذِينَ اتَّقَوْاْ {But those who feared}: Allah (swt) speaks about the essence of religion; because fearing Allah (swt) is the all the goodness and obedience of Allah (swt). This verse comes after the verse related to fire which is the final refuge of those who fought the Messenger (saws) at that time.
وَمَا عِندَ اللّهِ خَيْرٌ لِّلأَبْرَارِ {And that which is with Allah is best for the righteous.}: The righteous are those who are truthful in their covenant with their Lord.