1. Everyone born of God overcomes the world (1-5)

Everyone who believes that Jesus is the Christ is born of God. He loves the Father and loves others obeying the command of the Father God. So everyone who loves the Father loves his children as well. But it is not easy to do so in this world that goes against God and makes us hate each other more than love one another because of sin. However, everyone born of God overcomes the world by faith in Jesus as Jesus, the Son of God overcame the world and Satan (Jn 16:33).

2. Whoever has the son has eternal life (6-12)

Two human testimonies are enough as witnesses. But God gave 3 testimonies to testify to Jesus: Jesus came by water (Baptism, John's witness) and blood (His death, the scripture's witness) and by the Spirit of truth (the Holy Spirit who came on him testifying his being the Son of God). Whoever believes in him was given life, eternal life that is in his Son. Whoever does not have the Son of God does not have life.