"And this is his command: to believe in the name of his Son, Jesus Christ, and to love one another as he commanded us." NIV translation
It is not hard to understand what God wants from us and John gives it to us as clear as possible here. First, we must believe in Jesus Christ, the Son of God who died for our sins and rose again. Second, after we are saved, we are to love each other in the same manner that Jesus loves us.
"Those who obey his commands live in him, and he in them. And this is how we know that he lives in us: We know it by the Spirit he gave us." NIV translation
Are you doing what Jesus said and have you got the Spirit? Those are the two questions that we each should ask ourselves. If you can answer yes to both of them, then the paternity test results are back and God is your Father!