Warren Buffett and Bill and Melinda Gates made history when they launched the Giving Pledge, promising to donate half of their money. As of 2018, this meant giving away 92 billion dollars. The pledge made psychologist Paul Piff curious to study giving patterns. Through a research test, he discovered that the poor were inclined to give 44% more of what they had than wealthy people. Those who’ve felt their own poverty are often moved to greater generosity.

Jesus knew this. Visiting the temple, He watched the crowds drop gifts into the treasury (Mark 12:41). The rich tossed in wads of cash,…