So then, we can testify to and argue Reformed theology, but we can do absolutely nothing to win the non-believer over to our position. As Paul says in his letter to the Romans: “The mind set on the flesh is hostile toward God; for it does not subject itself to the law of God, for it is not even able to do so” (8:7, NASV). This is where a basic tenet of Reformed theology enters — that of total depravity. Nothing the non- believer does on his own will bring him to God; only when God changes his heart will the non-believer accept the bases of our arguments. Concomitant with this are a host of other interrelated tenets of Reformed theology. We have the promise that God’s grace is irresistible; His purposes will be accomplished in both the individual and society. Because God is sovereign and all things depend on Him rather than on man, there will always be a remnant of God’s people preserved. Our efforts are therefore not without the promise of harvest. Because our God of the Bible is back of everything, we can be sure that His word will not return to Him empty and will achieve the purpose for which He sent it (cf. Isaiah 55:10-11).