Thanksgiving is coming. Every November, people on Facebook spend the month sharing what's on their list of things they're thankful for. Those posts often cause me to realize that I'm thankful for the same things! Their giving thanks literally gives ME thanks!
Giving is like that, whether it's thanksgiving or caregiving, or simply giving to support someone's need. Our gift has a far more significant effect than just meeting a need. And in some miraculous way, we receive back more than we can know.
In Philippians 4, Paul thanks his friends for the gift they have given him, but he wants them to know what they have received. In providing for him, they've learned the promise that, as Paul says, "my God will supply every need of yours according to his riches in glory in Christ Jesus" (Philippians 4:19). In giving, they've received back so much more.