'Talaq' in the eye of religion

. PHOTO: AFP
I appraise the writer's expressions quoting verses from the Holy Koran. Our nation highly values the religious rules in any regard! Including all his explanation, I am very much satisfied with his very last sentence, "If the women suffer, after all, half of the umma suffers, and the holy book does not permit injustice in any case"
But, the honourable writer has not clearly mentioned the "reasons" of uttering talaq! Can he clarify these to me, a citizen having no knowledge about the existing laws? Please do!