. . , But even unto this day, when Moses is read, the vail is upon their heart. Nevertheless when it shall turn to the Lord, the veil shall be taken away. Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty 2Corinthians 3:15-17

When men don’t understand the Word of God, it’s because there’s a veil covering their hearts. It’s like what happened with the Law of Moses, in the Old Testament:
the children of Israel couldn’t see the glory beyond the veil. Our opening verse tells us that even until this day, when "Moses," that is, "the Law," is read, that veil is still
present; it’s only taken away in Christ. In other words, when you received salvation in accordance with Romans 10:9, the Lordship of Jesus destroyed the power of darkness over your life and took away the veil from your heart.

At the New Birth, you were catapulted into the Kingdom of Light; the Kingdom of God’s dear Son.

Colossians 1:12-13
, "Giving thanks unto the Father, which hath made us meet to be partakers of the inheritance of the saints in light: Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son."

The Holy Spirit accomplished this in your life when He baptized you into Christ

. . , "For by one Spirit are we all baptized into one body…" 1 Corinthians 12:13

that body is Christ. Christ is "Light"; so upon the New Birth, the Holy Spirit baptized you into the "Light," and you became awakened to the Fatherhood of God. Thus was the veil removed from your heart to walk in the light of God, and understand spiritual realities.

Amen brother