Charles Spurgeon on the need for abiding faith:
Oh that we might always live so that the Lord might see in all our actions that they spring from faith. Then shall our actions as well as ourselves be always accepted of Him by Christ Jesus, for the Lord has plainly declared, “the just shall live by faith; but if any man draws back, My soul shall have no pleasure in him” – that is, draws back from faith and runs in the way of sense and feeling. Having begun by faith we are to live by faith. We are not to find life in the Gospel and the nourish it by the Law. We are not to begin in the Spirit and then seek to be made perfect by the flesh, or by confidence in man – we must continue to walk by the simple faith which rests only upon God, this is the true spirit of a Christian.Charles Spurgeon, “The Hiding of Moses by Faith” as quoted in The Pastor’s Justification: Applying the Work of Christ in Your Life and Ministry by Jared Wilson, pp. 148-149.