9:37Postponement is an increase in disbelief—by which those who disbelieve are led astray. They allow it one year, and forbid it another year, in order to conform to the number made sacred by God, thus permitting what God has forbidden. The evil of their deeds seems good to them. God does not guide the disbelieving people.

9:124Whenever a chapter is revealed, some of them say, “Which of you has this increased in faith?” As for those who believe: it increases them in faith, and they rejoice.