A favourite of mine on friendship - Job 16:20-21 says:
"My intercessor is my friend
as my eyes pour out tears to God;
on behalf of a man he pleads with God
as a man pleads for his friend.
Isn't that wonderful? We can know Jesus as our Friend and Saviour, but how could Job, at the time of Genesis have known Him this way? Looks like he did, by some special grace of God.
Blessings.