Fear is the opposite of love. Perfect love casts out fear. God is love. Faith is the supernatural trust of God that comes from God to us when we hear God's voice with our wills set to submit to Him and obey Him. Faith is the door to God's love.

You Need Love If You Want Fulfillment, But What Is It Really?

When John, the apostle wrote, God is love, he used the word, Agape.  Agape Love is the love that God is.  There is also a selfishness that some people call love, which is eros.  This is a love that takes what does not belong to it, it is selfish.  From eros, we get the word, erotic.  There is a brotherly love, philadelphia, which is simply a meeting of two who have common interests, career, etc.  It is something that God designed and built into creation, and there is value in it.  Then, there is natural affection.  The Bible doesn't use the word, natural affection, but it does use a word that means the lack of natural affection.  Natural affection is something that God designed and built into human beings.  It makes even unbelievers love their own families and feel sorry for someone who is going through problems.  It is purely natural, and a good thing that God built into every person.  When wickedness gets too great, even natural affection fails.