Religiously tithing and giving of your resources without the right heart will reap a harvest of nothing. Everything you give must be done with the right heart. You can not purchase the blessing of God!
2 Corinthians 9:6-8
6 The point is this: whoever sows sparingly will also reap sparingly, and whoever sows bountifully will also reap bountifully. 7 Each one must give as he has decided in his heart, not reluctantly or under compulsion, for God loves a cheerful giver. 8 And God is able to make all grace abound to you, so that having all sufficiency in all things at all times, you may abound in every good work.