Reading the epistoles of John is like reading the advice of a father to a son. And in these books of John we see expressions like “my little children.” The truth is that God as our heavenly Father will always want the best for us and we must be aware of His advice for us.
The Bible teaches:
11 Beloved, follow not that which is evil, but that which is good. He that doeth good is of God: but he that doeth evil hath not seen God.
12 Demetrius hath good report of all men, and of the truth itself: yea, and we also bear record; and ye know that our record is true.
3 John 1:11-12 (KJV)
Before John the apostle saying these words he put two examples in the previous verses, one from Gaius, praising his hospitality, and the other from Diotrephes, who loved the first places and did not want to receive the men of God.
These examples is like talking about the wheat and the tares, both are present in the church, but we must be careful which of the two we are going to imitate.
And in contrast to that the apostle says not to imitate the bad, which Diotrephes represents, but to imitate the good, which Gaius represents.
This will be the difference between a person who loves God and another who is simply inside a congregation to fulfill their own wishes.
O dear reader, those who love God are known for their fruits, as they will do good and fight for it. They will bear firm witness that they are faithful believers and children of the Most High God.