Great faith has a short shelf life.

It will take unshakable faith in the Lord Jesus Christ to choose the way to eternal life. It is by using that faith we can know the will of God. It is by acting on that faith we build the strength to do the will of God. And it is by exercising that faith in Jesus Christ that we can resist temptation and gain forgiveness through the Atonement.

The same power of an early choice to exercise faith and to be persistent in obedience applies to gaining the faith to resist temptation and to gain forgiveness. The best time to resist temptation is early. The best time to repent is now. —Elder Henry B. Eyring

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