Bad theology dishonors God and hurts people. Churches that sever the root of truth may flourish for a season, but they will wither eventually or turn into something besides a Christian church.
John PiperSpiritual leadership is knowing where God wants people to be and taking the initiative to get them there by God's means in reliance on God's power.
John PiperHe has made me wary of chronological snobbery. That is, he showed me that newness is no virtue and oldness is no vice. Truth and beauty and goodness are not determined by when they exist. Nothing is inferior for being old, and nothing is valuable for being modern. This has freed me from the tyranny of novelty and opened for me the wisdom of the ages.
John Piper