The answer is this: God's sovereignty does not relieve us of personal responsibility to the poor. Just because he has called me to trust him in a special circumstance, does not relieve me, nor this nation, of it's responsibility to the "widows and orphans.'
Does God's sovereignty relieve you of the personal responsibility to your family?
Just because He has called you to trust in a Him in a special circumstance does not relieve you from your responsibility to your wife and children.
That you have this ministry does not mean that your children should not be provided for.
Why is it important to you to be here telling us that we have an obligation to the entire nation that you do not feel towards your own immediate family?