John 1:13 who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
John 3:3 Jesus answered and said to him, “Truly, truly, I say to you, unless one is born again he cannot see the kingdom of God.” James 1:21 Therefore, putting aside all filthiness and all that remains of wickedness, in humility receive the word implanted, which is able to save your souls.
This great doctrine of regeneration is so radical (in one sense) that not many are prepared to accept the implications of it. The doctrine of regeneration has tentacles (of grace and love that reach into all aspects of theology, but these glorious tentacles are centered and focused upon God and God-centeredness. Regeneration is either a doctrine of sovereign grace or it is something that man can attain to in some way by what he does. At this point the doctrine of total depravity and inability are seen in contrast to the sovereign grace of God who regenerates according to Himself and not according to anything found in man or done by man.
One of the biblical teachings that men hate is that all men are born dead in sins and trespasses and by nature they are children of wrath (Eph 2:1-3). This is to say that men must be made alive by some power outside of themselves and that their nature must change. The Scriptures also teach us that all men are born as children of the devil and that they must be changed by regeneration in order to become children of the living God. Another way to put this teaching of Scripture is that men are born with a nature of self-centeredness and self-love (selfishness) and must be born again in order to be God-centered with a love for God. The only people that love God are those that have been regenerated or born again.
1 John 3:9 No one who is born of God practices sin, because His seed abides in him; and he cannot sin, because he is born of God. 10 By this the children of God and the children of the devil are obvious: anyone who does not practice righteousness is not of God, nor the one who does not love his brother.
I John 4:7 Beloved, let us love one another, for love is from God; and everyone who loves is born of God and knows God. 8 The one who does not love does not know God, for God is love.
John 13:35 “By this all men will know that you are My disciples, if you have love for one another.”
There is something unique and quite different from biblical love and what the natural man (whether religious or not) thinks of as love. The natural man thinks that when you are nice to someone and try to do nice things for them that this is love. In terms of romance, this is seen in giving things so one can obtain the feelings of others in return. But Divine love is far different. It is concerned about the glory of God and then how other human beings will love and glorify God. Divine love is not so much about doing nice things and getting nice things in return, nor is it concerned so much about the rush of feelings that the natural man is concerned about. This Divine love is focused on love for God and His glory. The greatest act of love that one human being can do for another is to direct them toward God and to love Him.
From I John 3:9-10 we can see that there are children of God and children of the devil and that a sign of being a child of God is loving a brother (spiritual brother, a Christian). From I John 4:7-8 we can see that the only people who love are those who are born of God and know God. No one who has not been born from above truly loves God or others. Then we see in John 13:35 that it is only the disciples of Christ who truly love. True love is the mark of a Christian and without this one cannot see that others are disciples of Christ. What should be noted again, however, is that the world and the religious world have their own ideas about the nature of love. Just because a person thinks that s/he loves does not mean that the person has true love. Just because a person is very nice does not mean that the person has true love. Just because a person is very religious and very nice does not mean that the person has true love. Religiosity, niceness, and human love can come from the natural man. True and Divine love can only come from God and will only be in regenerate souls.