We know that in this world there are two kinds of people, one is that who does good, and another is that who does evil. We can see that the evil in humanity is increasing and this is because they are not submerged in the justice of God.
Dear friend, do not imitate what is evil but what is good. Anyone who does what is good is from God. Anyone who does what is evil has not seen God.
3 John 1:11
The word of God says that “Because of the increase of wickedness, the love of most will grow cold”, this lets us understand that people who do not have love can not do good, because the love of Christ is not in them.
John exhorts us not to practice evil because this is not to God’s liking, we know that everything bad comes from satan who seeks people to do all kinds of atrocities.
A man who is out of the presence of the Lord can commit any kind of evil, and this is because he is being led by the evil one.
Demetrius is well spoken of by everyone—and even by the truth itself. We also speak well of him, and you know that our testimony is true.
3 John 1:12
When we speak of someone’s good and give a good testimony of that person, it is because he is doing all that is good and is practicing God’s justice with others. In this case, John is talking about Demetrio, this man was an example for others for the good works he did.
When we do good works our spirit testifies for us, because God likes us to practice justice with others, remember that God is love and everyone who loves has known God, because God is love.