You must have seen people making fake promises. They promise for what they don't have and not sure. But when someone not keep His/Her promise only then they realize that Promise is a big deal.

     Believers do make promises to God. But most of them do not keep them. Then how could they claim His promise as God says, "and it is much batter not to vow, than after a vow not to perform the things promised" (Ecclesiastes 5:5). Hence, from this very day remember Promise is a big deal.