Giving is an act which has been directed from the Holy scriptures it is more blessed to give than to receive, there is this cycle that has to do with the cycle of giving and receiving.
If we don't give there is definitely no way we can receive, so we have to give so that we can receive in our daily activities and dealings with individuals we should rule out the habit of self centeredness and selfishness, a clenched fist can never receive or neither can he give but an open one receive double folds.
We are commanded in the Bible by God to pay our tithes which is one out of ten of our earnings or receivables so that God can will also open the windows of heavens and doors according to the book of Malachi that blessings we are going to receive will have no room enough for us to receive it.
And he will rebuke the devourer that he may not eat out fruits. That was an assurance and a promise.