God the Son agreed to be Surety for all those whom the Father chose to save by paying their penalty for sin and redeeming them with His own precious blood. God the Spirit agreed to appropriate the purchased redemption to the elect in time through the work of regeneration. God chose a people in Christ before they ever existed and predestinated them to be saved and conformed to the image of Jesus Christ according to His own sovereign and wise counsel. A. Man was entirely passive in the decree of unconditional election. This election by the Father was according to God's own free will, not man's.
Man is merely the recipient of sovereign grace.
God the Father did all the choosing in eternity. C. Everyone who was elected by the Father will be saved by Jesus Christ the Son without fail. Man's spiritual condition establishes the need for only God's input in salvation. The Holy Spirit must quicken the elect in regeneration and grace him with the gifts of repentance toward God and faith in the Lord Jesus Christ. Man is spiritually dead Eph.