when they come to you they say we have accepted your faith. however they entered into your faith as unbelievers and left it as unbelievers. god knows best what they were hiding.
وإذا جاءوكم قالوا آمنا وقد دخلوا بالكفر وهم قد خرجوا به والله أعلم بما كانوا يكتمون