Have you ever left a jug of milk in the fridge for way too long? When you eventually open the jug and pour it out, you can see (and smell!) that the milk's gone sour. In the same way, when we choose to simply ignore the sin in our lives instead of actually getting rid of it, it sours us from the inside out. But when we choose to "pour out" the sour milk of our sin, God chooses to "pour out" His blessings on our lives in return!