Calvinists often conflate man’s choice to confess with God’s choice to forgive while labeling it all “salvation.” They go on to convincingly argue that God is “sovereign over salvation,” which to a Calvinist actually means, God is as much in control over man’s choice to repent in faith as He is over His own choice to forgive the repentant. It would be tantamount to the father being just as in control over his son’s return home as he was over his gracious choice to receive him back when he got there. This is simply never established biblically.
