"The kingdom of God within", is a biblical metaphor for God's possibility, as contrasted with "the kingdom of men without" a biblical metaphor for man's impossibility. What was "impossible with men" lay in seeking a wisdom and glory like God's, in the illusion of having potential independent of and in separation from God. So he needed God's sufficiency (Grace) to meet his insufficiency in works of the Law. But once new covenant man realized his dependence and union with God through the same Spirit, then he no longer needed Grace.
If I may ask this so called man of God,law yamuri kuti yakavigwa ndeipi? Uye pamurikuti grace replaced the law,tinoponeswa nenyasha,munhu anonzwira nyasha anenge aita sei.? Inga wani munoparidza kuti kuba kwakaipa,kuchiva kwakaipa,etc so nyasha hadzigoni kushanda pasina mutemo.