In our study of 1 John chapter five, we look at the basis for our faith in Jesus Christ and how that faith allows us to overcome this world. There are many "faiths" today as it seems that everyone believes in something but we will see how it is only by faith in Jesus as the Son of God that we have the victory.
John begins by showing us that our faith is an exclusive faith in that it all comes down to Jesus being the Son of God and Savior of the world. Although this is not popular today, there is only one faith that accomplishes anything and that is Jesus. There are many that say they love God but reject His Son (Jesus) but, as we see here, that is not possible.
We show our love to God by obeying Him and He has called us to love others. Therefore, we demonstrate our love for Him by loving those people that are around us. When asked what the greatest commandment was, Jesus answered that it was to love God and love your neighbor. That is what John is stating here as well.
If we love God, we will not want to disappoint Him with our words and actions. That is why we obey His commands and they are "not burdensome". God is right in everything that He says and does and so His commands are the right things to do as well. Overcoming the world speaks to the fact that we are no longer defeated and controlled by our enemy which is threefold: the world, the flesh, and the devil. This is the only time that the word "victory" occurs in the New Testament and we are told that it only comes through our faith in Jesus.