But thou didst hide in thy heart that which Allah was about to make manifest : thou didst fear the people , but it is more fitting that thou shouldst fear Allah . Then when Zaid had dissolved ( his marriage ) with her , with the necessary ( formality ) , We joined her in marriage to thee : in order that ( in future ) there may be no difficulty to the Believers in ( the matter of ) marriage with the wives of their adopted sons , when the latter have dissolved with the necessary ( formality ) ( their marriage ) with them .