Amen John. (I'm positive you meant "CAN'T stand alone on one or two verses).
Ronen, IMO, the "other side" of the scripture you quoted is addressed here (although there are MANY that speak to separation from God, being lost, needing to believe on Him to be saved, etc.) But specifically, a little further down in the same chapter,
2 Corintians 5:20 Therefore, we are ambassadors for Christ, God making his appeal through us. We implore you on behalf of Christ, be you reconciled to God. Then there is a plethora of scriptures that show how and what this means as listed in the other thread (Ephesians 2:8-10, Romans 10:13, I John 5:13, Acts 22:16, Acts 2:38,39, John 3:5, Romans 10:9,10 "IF confess and believe WILL be saved")
Christ's sacrifice brought down the barrier, made the Way. Now God is calling, choosing, giving faith to believe on Him/receive Him as Savior as He wills according to His timing and plan. The ecclesia now, the rest later. Every knee will bow.