One of the reasons it is so important for someone to be born again is so they can understand the Word of God.  This can only happen with the help and by the power of the Holy Spirit.  This is confirmed in First Corinthians chapter 2.

1 Corinthians 2:11-14 (NKJV)
11 For what man knows the things of a man except the spirit of the man which is in him?  Even so no one knows the things of God except the Spirit of God.
12 Now we have received, not the spirit of the world, but the Spirit who is from God, that we might know the things that have been freely given to us by God.
13 These things we also speak, not in words which man’s wisdom teaches but which the Holy Spirit teaches, comparing spiritual things with spiritual.
14 But the natural man does not receive the things of the Spirit of God, for they are foolishness to him; nor can he know them, because they are spiritually discerned.

In verse 11, because God is a spirit, He relates to mankind spiritually, not mentally and not physically.  However, if we are born again through the Word of God, doesn’t it just make sense that we should renew our minds by meditating on the Word of God and present our bodies by obeying the Word of God?  All of this can only be done with the help and by the power of the Holy Spirit.

In verse 12, when we are born again, we receive the Spirit of Christ, which is from God.  The Spirit of Christ is the same as the Holy Spirit.  The purpose of the Holy Spirit is so we can know the things that have been freely given to us by God.  This includes being able to understand the Word of God so we can enjoy the promises of God and experience all the benefits of our salvation.

In verse 13, the contrast is made between man’s wisdom and God’s wisdom.  The bottom-line difference between the two is man’s wisdom is only concerned with the things of this life, while God’s wisdom includes being concerned with the things that will matter for eternity.  Worldly wisdom will stand before the Great White Throne Judgment and end up in the lake of fire.  Godly wisdom will stand before the Judgment Seat of Christ and end up in the Millennium with Jesus.

In verse 14, the natural man (a person that is not born again) cannot understand the Word of God.  To a person who is not born again, the things of God are foolishness to him or her.  A person cannot understand the Word of God without the Holy Spirit.

Did you ever meet someone, and when you start talking about the things of God, they get disgusted, defensive, or even belligerent?  In other words, they just don’t want to hear it.  The reason for that is because they are not born again.  The spiritual part of them is still spiritually dead – their spirit isn’t alive to God yet.  They cannot understand the Word of God, and as a result, you talking to them about the things of God sounds ridiculous to them.  However, you are the one God is using in their life who must first be an example to them, then lead them to Christ, and finally, disciple them with the Word of God.

According to George Barna’s research, 35% of Americans say they are born again.  If each born again Christian would just lead one person to faith in Christ and then disciple them during the next year, 70% of the total population would be born again, and that would probably lead to a change in the spiritual, social, and political climates in America.  This is how revival and the next Great Awakening is going to happen in the United States and around the world!