God's commandments is to believe that Jesus Christ came from God, was baptized by John the Baptist for saving us, and shed His blood on the Cross. To keep this commandments is to love God. The commandments are the commandments God has given us.
The commands God has given us is not heavy. This non-heavy commandment is that God sent Jesus Christ to us. Who is the one who came from the Lord God? Which is He God or human being? He is God.
The world is belong to the Devil Satan. Therefore, we can't believe in and follow such Devil things. Those who keep God's commandments that He has given us are the victory people that has overcome the world. Even death which is going to kill our fleshes can't make us deny our faith.
Jesus took away all our sins once and for all by being baptized by John the Baptist, and He died on the Cross and He was resurrected from death on the third day. That's why we don't have sin in our hearts. Although there are three witness (Water, Blood and the Spirit) in our hearts, it is the commandment of God that we keep this three witness. To love God is to love One who God sent to us. Those who believe in this witness are very easy to believe in God. However, those who doesn't have this witness are so hard to believe in God.
There is the clear three witness in our hearts, and its three witness overcomes the world. We the born again can overcome the temptation and the hesitation of the world. Even though there is no this witness in one's heart, to say that they believe in God is very lie. Let's keep God's commandments if you have three witness in your hearts too.