This is the message which we have heard from him and announce to you, that God is light, and in him is no darkness at all.
Then in chapter 3, verse 1Jo 1:23 , "This is His commandment, that we should believe on the name of His Son Jesus Christ, and love one another as He gave us commandment." So He is our example in our relationship with each other, as we are to love one another as He gave us the commandment.