Eph 4:17 So this I say, and affirm together with the Lord, that you walk no longer just as the Gentiles also walk, in the futility of their mind,
Eph 4:18 being darkened in their understanding, excluded from the life of God because of the ignorance that is in them, because of the hardness of their heart;
Eph 4:19 and they, having become callous, have given themselves over to sensuality for the practice of every kind of impurity with greediness.
Eph 4:20 But you did not learn Christ in this way,
Eph 4:21 if indeed you have heard Him and have been taught in Him, just as truth is in Jesus,
God says we do NOT learn the truth through the world's thinking and ways.
2Co 4:1 Therefore, since we have this ministry, as we received mercy, we do not lose heart,
2Co 4:2 but we have renounced the things hidden because of shame, not walking in craftiness or adulterating the word of God, but by the manifestation of truth commending ourselves to every man's conscience in the sight of God.
2Co 4:3 And even if our gospel is veiled, it is veiled to those who are perishing,
2Co 4:4 in whose case the god of this world has blinded the minds of the unbelieving so that they might not see the light of the gospel of the glory of Christ, who is the image of God.
2Co 4:5 For we do not preach ourselves but Christ Jesus as Lord, and ourselves as your bond-servants for Jesus' sake.
God brings people to the truth of Jesus Christ (who IS Truth), by the Word of Truth, the Gospel:
Col 1:3 We give thanks to God, the Father of our Lord Jesus Christ, praying always for you,
Col 1:4 since we heard of your faith in Christ Jesus and the love which you have for all the saints;
Col 1:5 because of the hope laid up for you in heaven, of which you previously heard in the word of truth, the gospel
Col 1:6 which has come to you, just as in all the world also it is constantly bearing fruit and increasing, even as it has been doing in you also since the day you heard of it and understood the grace of God in truth;