Upvote:2
I would argue there is no synergism whatsoever in justification. The natural man, the Bible points out, is not sick and needing a doctor. He is dead and needs resurrection. Dead people don't raise themselves. They need to be raised (passive voice very intentional here). Therefore, the Holy Spirit must raise people from the dead and give them a new heart. Otherwise, they will not desire God. God the Holy Spirit, that is, changes peoples' wills so that they want God. Before that, people hate God and do not want Him.
The traditional Reformed ordo salutis is, IIRC, the following:
Predestination, Effectual Calling, Regeneration, Conversion, Justification, Adoption, Sanctification, Glorification. Now the steps of Effectual Calling through Adoption happen nearly instantaneously, so I'm merely writing them out in this way as a logical progression more than as a time progression. Also, all steps up through and including Adoption are completely monergistic. Sanctification is synergistic: 100% God, and 100% man, although even the part that we do is utterly dependent on God's strength.