Give generously to him and do so without a grudging heart; then because of this the LORD your God will bless you in all your work and in everything you put your hand to. Deut 15:10: Everything we own and everything we have comes from God. So, when we give, we simply offer him a very small portion of all the abundance he has already given to us. Giving is an expression of our thankfulness and praise to God. It comes from a heart of worship that recognizes that everything we give already belongs to him.