right doctrine but wrong spirit

'One of my own saddest recollections in pastoral ministry is of being told that during a new members' welcome that included a young husband with "a past," two "pillars of the church," esteemed for the model way in which they fulfilled all church membership responsibilities, were overheard to say, "What's he doing joining the church?" How easy it is to fall into a spirit of conditional grace toward prodigals even when the right doctrinal notes are struck!' - Sinclair Ferguson, The Whole Christ, p73fn35