It requires one to stick with the system to have one systematically produce fruit unto righteousness. Our wills are not over-powered nor is every single act deemed righteous. We still have to choose to obey the Holy Spirit,Those two statements seem to contradict each other. To strive is to fail. To strive is to place one under the Old Covenant where one strived to keep the law whereas under the New Covenant, it is Grace through faith, and not of yourselves. God guarantees that those who he has foreordained as new creations in, with, and through the faith of his dear son by the power of his holy Spirit will systemically produce fruit unto righteousness as a consequence of their salvation, sanctification, etc. to the glory of God.
But let's not confuse this with salvational status. Yes. We do become new creations. We are justified based on our faith, and we have a remission of sins. When I talk about striving, I'm referring to sanctification.
Yes. The debt is paid simply on our acceptance of Him, and we serve out of love.Under the Old Covenant, one strived to keep the law by their own will and effort. Under the New Covenant, Christ carries the load for us, and his burden is light, his yoke easy.
That's doesn't mean we have complete sanctification or a divine nature. We can look to the law as God's standard of righteousness, and realize where we need to "grow in grace," [2 Peter 3:18] and advance in the knowledge and love of God his Savior [see Philippians 1:9].