Challenging the Disbelievers
[3:61] If anyone argues with you, despite the knowledge you have received, then say, “Let us summon our children and your children, our women and your women, ourselves and yourselves, then let us invoke GOD’s curse upon the liars.”
[3:62] Absolutely, this is the narration of the truth. Absolutely, there is no god except GOD. Absolutely, GOD is the Almighty, Most Wise.
[3:63] If they turn away, then GOD is fully aware of the evildoers.
This verse challenges the disbelievers by means of the mathematical miracle.
3:61 = 361 = 19×19 = 361
If the disbelievers don’t believe in God then they should have no fear of a curse from God. If they are apprehensive which most likely they will be then it shows that deep down they know the truth.