The Power of Selfless Service

Is it not to deal thy bread to the hungry, and that thou bring the poor that are cast out to thy house? when thou seest the naked, that thou cover him; and that thou hide not thyself from thine own flesh? (Isaiah 58:7)

Wherefore, O king, let my counsel be acceptable unto thee, and break off thy sins by righteousness, and thine iniquities by shewing mercy to the poor; if it may be a lengthening of thy tranquillity. (Daniel 4:27)

For I was an hungred, and ye gave me meat: I was thirsty, and ye gave me drink: I was a stranger, and ye took me in: 36 Naked, and ye clothed me: I was sick, and ye visited me: I was in prison, and ye came unto me. 37 Then shall the righteous answer him, saying, Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink? 38 When saw we thee a stranger, and took thee in? or naked, and clothed thee? 39 Or when saw we thee sick, or in prison, and came unto thee? 40 And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me. (Matthew 25:25-40)

Jesus positions himself with the suffering and powerless. Jesus even became such a person, he had nowhere to live without the hospitality of others. (Luke 9:58) Remarkably, righteous Daniel's advice to a king who is threatened with disgrace is to overcome sin by doing good to the suffering and powerless. Why would that be? Why does God want us to fast by doing good to others?
That is what God himself does. If we are to be like the God that gives and sustains life freely and abundantly we will need to be generous givers.
It turns our thoughts from ourselves and thus helps us to be transformed by thinking about Jesus and other good things.
We become aware of reality more clearly, and so we are driven to Jesus to heal and save us and so we are healed and saved.
This is about selfless service, not just giving. Selfless service is the substance of love and love is the fulfilling of the law. Jesus set the example of love, though he had few possessions. Those who have been given great resources to manage must beware lest they make excuses to retain them.
You can't afford not to love, no matter how little you have left. You can't afford not to love, no matter how much you have been given.