Psalm 119: 1 Blessed are those whose way is blameless,
who walk in the law of the Lord!
2 Blessed are those who keep his testimonies,
who seek him with their whole heart,
3 who also do no wrong,
but walk in his ways!
This brief letter from John answers one overriding question from both that day and ours: What does love really look like? As we have seen in his first two letters, we know someone had received the love of God in Christ by their obedience to his Word and by their love for fellow saints. But does that love mean that we allow them so say or do anything without correction or rebuttal? First, on the positive side, hospitality is a mark of truth faith; lack of hospitality makes the sincerity of said faith questionable. Second, when we hear someone say something contradictory to the Gospel, it is not "loving" to say it is okay. Third, actions prove the sincerity of our words. We cannot proclaim to be His, then do what He has proclaimed as evil.
John is truly the Apostle of Love, as we saw in his first letter. That theme comes out again. Obedience - walking according to Christ's commands - is the sign that we have received the love of God in Christ. What obedience does not do is replace Christ. Many false teachers then and now "go on ahead", adding to Christ as Savior and Lord. This devalues the person and work of Christ, making Him less than Who He is. We must beware those who go to far, adding to the simplicity of Christ, or making too little of Who He is.
It's a crazy world out there, with all sorts of wild thoughts about what is and is not true. It's nothing new. As John wrote to fellow believers at the end of the first century, the world was full of lies, being held under the influence of the evil one. But as followers of Christ, we can have assurance and confidence in what is true: the one who believes in Jesus Christ as the victor over sin and death, who trusts in Him as God's sent Savior, and therefore obeys His commands - that person has eternal life and can live in victory over sin. In this chapter John hits it from every angle, repeating the same truth different ways. In Christ Jesus truth, love, and life all come together, and we can know we have God's presence now and forever.
John has often been referred to as "the apostle of love." After all, he uses the word 14 times in this paragraph alone. But this love is not the shallow kind spoken of so often in our society. In the opening paragraph of this chapter John warns that such shallow love has nothing to do with Christ, but rather is from deceiving spirits. Real love - the kind John is talking about here - is connected to Christ, Whose very coming to earth demonstrated that love and sin have nothing to do with one another. John then goes on to say that because we understand the connection between real love and Christ's death for our sins, we in no way want to have any connection with the old sinful life nor the judgment it brings. Let us settle for nothing less than the love of God in Christ.