John's baptism...was a radical act of individual commitment to belong to the true people of God, based on personal confession and repentance... This is one of the main reasons that I do not believe in baptizing infants, who cannot make this personal commitment or confession or repentance. John's baptism was an assault on the very assumptions that give rise to much infant baptism.
John PiperAll of history is moving toward one great goal, the white-hot worship of God and his Son among all the peoples of the earth. Missions exists because worship doesn't. Worship is ultimate, not missions, because God is ultimate, not man.... When this age is over, and the countless millions of the redeemed fall on their faces before the throne of God, missions will be no more. It is a temporary necessity. But worship abides forever.
John PiperThe greatest enemy of hunger for God is not poison but apple pie. It is not the banquet of the wicked that dulls our appetite for heaven, but endless nibbling at the table of the world. It is not the X-rated video, but the prime-time dribble of triviality we drink in every night.
John PiperDoes Christ get a good reputation because of the way we live? Is the excellence of Christ displayed in our lives? That should matter to us, not whether we ourselves are praised.
John Piper