And God is able to make all grace abound to you, so that having all sufficiency in all things at all times, you may abound in every good work. 2 Corinthians 9:8
“God can give us both the substance to give and the spirit in which to give it. In 2 Corinthians 9:8, Paul speaks of the all-sufficiency which God gives. The word he uses is autarkeia. It does not describe the sufficiency of the person who possesses all kinds of things in abundance. It describes the state of someone who has directed life not to amassing possessions but to eliminating needs. It describes someone who has learned to be content with very little. It’s obvious that people like that will be able to give far more to others because they want so little for themselves. It is so often true that we want so much for ourselves that there is nothing left to give others. Not only that, it is God alone who can put into our hearts the love which is the essence of the generous spirit.”
William Barclay in The Letters to the Corinthians (Louisville: Westminster John Knox Press, 2002) 279.