"But if our gospel be hid, it is hid to them that are lost: In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them." (2 Corinthians 4:3-4)
The "god of this world" is none other than Satan, who is also called "the prince of this world" (John 12:31) and the one "which deceiveth the whole world" (Revelation 12:9). It is sobering to realize that he and his demonic cohorts have the power to blind the minds of unbelievers, preventing them from comprehending even the simplest elements of the saving gospel of the Lord Jesus Christ.
However, Christ can make the blind to see! In answer to prayer and through the faithful presentation of the Word of truth, "the Father of glory, may give unto you the spirit of wisdom and revelation in the knowledge of him: The eyes of your understanding being enlightened; that ye may know . . ." (Ephesians 1:17-18).
The Lord desires that people come to Christ; therefore, He gives His witnesses weapons that can even vanquish Satan and open the eyes of the spiritually blind. These are the spiritual weapons of truth and righteousness, peace and faith, the Word and prayer (Ephesians 6:11-18). "(For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;) Casting down imaginations |literally 'reasonings'|, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought |same word as 'mind'| to the obedience of Christ" (2 Corinthians 10:4-5).
Even though Satan is far more intelligent and powerful than we, or those we seek to reach, God still enables us to recapture their minds and bring them to Christ, as we proclaim His truth, in His name, by His grace! HMM