Everything we have comes from God. Out of His love for us He entrusts us with what He has given us. Giving our tithes and offerings shows God that He is first in our lives and that we in turn trust Him. In James 1:17 it says that "every good and perfect gift is from above..."
We believe giving is a matter of the heart, as Jesus said in Matthew 6:21 that "where your treasure is, there your heart will be also."
God uses our tithes and offerings to further His Kingdom.
Bring all the tithes into the storehouse, that there may be food in My house, and try Me now in this... and I will open for you the windows of heaven and pour out for you such blessing that there will not be room enough to receive it. - Malachi 3:10 (NLT)