But this I say, He which soweth sparingly shall reap also sparingly; and he which soweth bountifully shall reap also bountifully
2 Corinthians 9:6

You decide how much harvest God can get to you. If you plant one seed, that seed is going to multiply. That seed is going to produce, but, that one seed will not bring you what two seeds would have brought you.

You need to get involved in aggressive giving. The Bible says that the violent—righteous men with energy—take it by force. Every offering is an opportunity given by God to prosper. Every time God tells you to give to somebody, He is giving you an opportunity to sow seed in good ground that will produce an abundant harvest. The more that you give to God, the more harvest He can bring unto you.

When you give bountifully, you get the entire blessing, and when you get the entire blessing, you get more than enough.