The Bible is the ultimate authority and infallible, not the pastor and not the elders. And it doesn't mean that you believe everything he says without examining it.
John PiperThe suffering of sickness and the suffering of persecution have this in common: they are both intended by Satan for the destruction of our faith, and governed by God for the purifying of our faith... Christ sovereignly accomplishes His loving, purifying purpose, by overruling Satan's destructive attempts. Satan is always aiming to destroy our faith; but Christ magnifies His power in weakness.
John PiperNothing makes God more supreme and more central in worship than when a people are utterly persuaded that nothing - not money or prestige or leisure or family or job or health or sports or toys or friends - nothing is going to bring satisfaction to their sinful, guilty, aching hearts besides God.
John PiperJames says, "You desire and do not have; so you kill" (Jas. 4:2). We kill marriages and we kill unborn babies because they cut across our desires; they stand in the way of our unencumbered self-enhancement. And we live in a culture where self-enhancement and self-advancement is god. And if self-enhancement is god, then the One who is at work in the womb shaping a person in His own image is not God and the assault on His work is not sacrilegious, but obedience to the god of self.
John Piper