Everything we have belongs to the Lord; we get the privledge of being wise in our stewardship of His stuff.

Therefore, "Each one must do just as he [or she] has purposed in his/her heart, not grudgingly or under compulsion, for God loves a cheerful giver.
(2 Corinthians 9:7)

There is one who scatters, and yet increases all the more,

And there is one who withholds what is justly due, and yet it results only in want.
(Proverbs 11:24)