What does Proverbs 3:10 mean?

This verse promises that the Lord will reward faithful giving. This echoes Deuteronomy 28:11–12, which promises Israel: "And the LORD will make you abound in prosperity…The Lord will open to you his good treasury, the heavens, to give the rain to your land in its season and to bless all the work of your hands." As always, context matters when interpreting these Scriptures. Deuteronomy's promises are meant for the nation of Israel, not for all people at all times. A "proverb," by definition, is a general statement. Solomon is not making an ironclad guarantee to all people in all circumstances. And yet, those who honor God set themselves up for better outcomes than those who live in rebellion.

The Lord has not promised Christians material prosperity in return for faithful giving. However, He has promised to meet all our needs (Matthew 6:33). Paul acknowledged the faithful giving of the Philippian church, and promised, "And my God will supply every need of yours according to his riches in glory in Christ Jesus" (Philippians 4:19). It is noteworthy that he did not say "out of His riches," but "according to His riches." God is a generous giver, but it is unlikely He will pour blessings into a closed hand. He loves and rewards a generous giver.