NKJ 2Cor4:3-4 But even if our gospel is veiled, it is veiled to those who are perishing, 4 whose minds the god of this age has blinded, who do not believe, lest the light of the gospel of the glory of Christ, who is the image of God, should shine on them.
Some are blinded - they don't believe - they are perishing.
16 Nevertheless when one turns to the Lord, the veil is taken away. (2 Cor. 3:16 NKJ)
Some turn to the Lord.
NKJ Acts 13:47 "For so the Lord has commanded us: 'I have set you as a light to the Gentiles, That you should be for salvation to the ends of the earth.'"
Paul was placed as a light to the Gentiles for Salvation
NKJ Acts 26:16-18 'But rise and stand on your feet; for I have appeared to you for this purpose, to make you a minister and a witness both of the things which you have seen and of the things which I will yet reveal to you. 17 'I will deliver you from the Jewish people, as well as from the Gentiles, to whom I now1 send you, 18 'to open their eyes,
in order to turn
them from darkness to light, and
from the power of Satan to God, that they may receive forgiveness of sins and an inheritance among those who are sanctified by faith in Me.'
The Lord sent Paul
to the Gentiles to open (anoigō) their eyes for this purpose:
- To turn-hupostrephō (active)
- from darkness into light
- from Satan's authority to God's authority
The turning is active on the part of man. Some turn - some don't. Looks like Paul the light the Lord placed for salvation for the Gentiles opened the eyes of some and they turned to the Lord - the Gospel gets through to some men - not to others.
Look at the several Scriptures mostly in Acts that speak of persuading men.
Seems simple.