Jesus said in Luke 16:10
He that is faithful in that which is least is faithful also in much: and he that is ubjust in the least is unjust also in much.
If we are not faithful in the day of small things then how can the Lord trust us with greater things? How can we expect the blessings to be overly abundant if we have shown God we can't be trusted. We need to pay our tithes and give offerings as best we can so that God will see that we are trustworthy and he will add to us to the point there will not be room enough to receive it.