Monergism

Union with Christ begins with God's pretemporal decision to save his people in and through Jesus Christ. This union, further, is based on the redemptive work for his people which Christ did in history. Finally, this union is actually established with God's people after they have been born, continues throughout their lives, and has as its goal their eternal glorification in the life to come. We go on, then, to see union with Christ as having its roots in divine election, its basis in the redemptive work of Christ, and its actual establishment with God's people in time.

Union between Christ and his people was planned already in eternity, in the sovereign pretemporal decision whereby God the Father selected us as his own. Christ himself was chosen to be our Savior before the creation of the world (1 Pet. 1:20); Ephesians 1:4 teaches us that when the Father chose Christ, he also chose us."

"We are initially united with Christ in regeneration." [next] "We appropriate and continue to live out of this union through faith."Third, "We are justified in union with Christ."Fourth, "We are sanctified through union with Christ."Fifth, "We persevere in the life of faith in union with Christ."Finally, "We shall be eternally glorified with Christ." - by Anthony Hoekema

Regeneration, faith, conversion, renewal, and the like, often [in the Bible] do not point to successive steps in the way of salvation but rather summarize in a single word the entire change which takes place in a man." - Herman Bavinck