John Piper, in his sermon, “He Who Sows Bountifully Will Reap Bountifully“

The more you give, the more you will be able to give. And if it is more blessed to give than to receive, you can see what a harvest of joy this will mean.

It could be said that giving is an opposite of lust. Lust consumes and consumes and gets and gets and is never satisfied. It’s like a flame that keeps on burning, and anything it gets ahold of is consumed, and still it continues to burn. When you give into lust, you become an incessant consumer.

Lust destroys everything around it.

Giving, on the other hand, produces more opportunities to give, as well as more resources to give. Instead of destroying what is around it, giving gives life to the things around it.