John knows that in the matter of loving others, it’s easy to be hypocrites. It’s easy to sing, “Oh, how I love Jesus,” while at the same time our homes are a battle zone. We put on our spiritual masks at church, but in our hearts we harbor bitterness toward a fellow Christian who has wronged us. So John once more hits this vital matter of practical love for one another. John is saying, love that comes from God gives us confidence in the day of judgment and must be expressed in love for others in obedience to God’s commandment.