It can involve affection as we work together in Christ, but affection is not a necessary element.We are commanded in the Scriptures to show love to all believers, but we are not commanded to make all believers our friends.

Friendship involves three foundational elements, commitment to fulfill the responsibility of a friend, care and concern for the welfare of your friend, and affection.

The word "friend" means someone you like who also likes you.

Song of Songs -11 says "How delightful is your love my sister, my bride!

How much more pleasing is your love than wine, and the fragrance of your perfume than any spice." Only in marriage may a man and woman enjoy expressing their romantic and sexual desires toward each other.

It means becoming physically intimate with each other as one flesh.

Marriage involves three elements, commitment, care and concern, and emotion.It shows that God desires that they enjoy the blessings of the union He created.Song of Songs 1:2 says “Let him kiss me with the kisses of his mouth, for your love is more delightful than wine.” Husbands and wives are to rejoice in each other’s love both romantically and sexually.This liking involves a "friendship kind of" affection based often on personality and common likes and interests.A second kind of relationship is “brother-sister in Christ.” If we have accepted Christ as our Savior we have become children of God.Proverbs gives several characteristics of friends and friendships.