"The
indispensable mark of Christian life is Christian love. The measure and test of
love to God is whole-hearted obedience (John 14:15, 21, 23; 1 John 5:3); the
measure and test of love to our neighbors is laying down our lives for them (1
John 3:16; cf. John 15:12, 13). This sacrificial love involves giving,
spending, and impoverishing ourselves for their well-being." R.C. Sproul