Losing One's Salvation: Does the "sealing" of the Holy Spirit in Ephesians mean that one cannot leave Christ or lose their salvation? [Ephesians 4:30, 1 John 4:13, Luke 15:24, 1 Peter 2:5, John 15:7]. Day of Redemption: Is the "Day of Redemption" referring to the corporate body at the resurrection? [Romans 8:23].