[15] Only those are Believers who have believed
in Allah and His Messenger, and have never since doubted, but have
striven with their belongings and their persons in the Cause of
Allah: such are the sincere ones.
[16] Say: "What! will ye instruct Allah about
your religion? But Allah knows all that is in the heavens and on
earth: He has full knowledge of all things.
[17] They impress on thee as a favour that they
have embraced Islam. Say, "Count not your Islam as a favour upon me:
nay, Allah has conferred a favour upon you that He has guided you to
the Faith, if ye be true and sincere.
[18] "Verily Allah Knows the secrets of the
heavens and the earth: and Allah sees well all that ye do."