The RCC seems hung up on morphing this creation into God Himself when Scripture is very clear that we remain sinners until our death. Mercifully, if we have been covered by the blood of Christ, all our sins have already been forgiven on the cross (Hebrews 10.)
The unmerited gift of the Holy Spirit indwells and leads Christ's sheep by the grace of God alone. Christ's sheep do not become Christ; they are led by Christ and redeemed by Christ through the grace of His imputed righteousness.
Thank you for our daily dose of Calvinist error. I’ll put it in the cabinet with the other emetics.