The prevailing thought in the Bible is to love the Lord our God, and to love our neighbor as ourselves. As we have discussed, showing this love is typically done by showing love to our "neighbor." One of the main ways we are directed to show love to our "neighbor" is to give.
Giving allows us the joy of blessing others who are in need.
Giving (generosity) has the ability to span both life and death.
Selfish people cannot claim generous promises (to whom much is given, much is expected).
Nothing expresses the Gospel more than generous giving as a lifestyle- "For God so LOVED the world that He GAVE His only Son..."
If you do not give, you cannot claim to love. Love and giving are always tied closely together.
Another article on same.