the postponement of sacred months is an increase in disbelief in which the unbelievers are misguided. they allow it one year and forbid it another year so that they can make up for the months that allah has sanctified so making lawful what allah has forbidden. their foul acts seem fair to them allah does not guide the unbelievers.
إنما النسيء زيادة في الكفر يضل به الذين كفروا يحلونه عاما ويحرمونه عاما ليواطئوا عدة ما حرم الله فيحلوا ما حرم الله زين لهم سوء أعمالهم والله لا يهدي القوم الكافرين