Packer: Doctrine, Life

We rightly repudiate the common view that doctrine does not matter so long as one is upright in life; but if we let our reaction drive us into the opposite extreme of supposing that one's life does not matter so long as one is theologically 'sound' ('a good Calvinist,' we say), then the beam in our own eye will be worse than the mote in our brother's.

--J. I. Packer, A Quest for Godliness: The Puritan View of the Christian Life (Crossway 2010; repr.), 108-9