You're kidding right? What does "obey his commands" mean to you?
this tells us who overcomes the world, not what overcoming the world means.
Let's look at it again.I John 5:4 For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, even our faith.Whosoever is born of God (a one-time event) will overcome the world. It is a God-guaranteed given.
5:5 Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?