HAVE YOU given thought [to how you will fare] if this be truly [a revelation] from God, the while you deny its truth? Who could be more astray than one who places himself [so] deeply in the wrong?

Say: "See ye if the (Revelation) is (really) from God, and yet do ye reject it? Who is more astray than one who is in a schism far (from any purpose)?"

Bethink you: If it is from Allah and ye reject it - Who is further astray than one who is at open feud (with Allah)?

Say: See you, if it is from Allah, then you disbelieve in it, who is in greater error than he who is in opposition far away?

Say, "Have you considered: if the Qur'an is from Allah and you disbelieved in it, who would be more astray than one who is in extreme dissension?"