Verses 23-24: This is His commandment, that we believe in the name of His Son Jesus Christ, and love one another, just as He commanded us. The one who keeps His commandments abides in Him, and He in him. We know by this that He abides in us, by the Spirit whom He has given us.
At the outset, John summarizes Our Lord’s commandments into one single directive. It should be noted that he uses this word commandment more than any other writer— 30 times out of 66 occurrences in the New Testament. It is not that he is needlessly preoccupied with Our Lord’s commands, but instead the Holy Spirit intentionally led him to emphasize this essential truth for our benefit, so that we might advance in our spiritual life.
His Commandment
There are two major components that comprise Our Lord’s commandments: believe and love. These two aspects of this commandment are now intricately entwined with faith in Christ and love for one another.
First we are to believe in the name of His Son Jesus Christ. This we should recall was what Our Lord pronounced: “This is the work of God, that you believe in Him whom He has sent.” (John 6:29)
But note that the emphasis here is upon His name, since John’s readers would have been familiar with the ancient beliefs concerning magic which considered there is power and efficacy in names, and that the knowledge of names gives power to the ones using it.1 However, John is referring to Our Lord’s Prayer in John 17:11-12, where He asked that the Father to keep us in His name, “the name which You have given Me,” for the explicit purpose of Christian unity. Dr. Beetham notes:
To say that the disciples are kept in the name of God indicates that they live in the sphere of an effective power, which protects them from ruin and unites them with each other.2
The name of Jesus Christ is the name of eternal power. To believe in His name “is to be firmly persuaded”3 regarding the reality of His deity: His attributes, authority, majesty, power and excellence.4 Scripture declares it is “the name which is above every name” (Philippians 2:9; cf. Hebrews 1:4); “no other name under heaven” has the power to save mankind (Acts 4:12); His name is the believers’ power source to receive anything we ask (John 14:13-14; cf. 1 John 3:22). However, we should be very cautious, understanding that there is no magical enchantment obtained by using His name as a sorcerer’s incantation. There is no spiritual efficaciousness in the repetition of His name.
Second, this commandment reiterates the directive to love one another. John is not obsessed with this matter of love. He has expounded upon it in this chapter and will continue so in the following chapters. Suffice it to say, here he provides a very concise reason for emphasizing this command: “just as He commanded us.” Specifically, he desires for us, his readers, to respond rightly to the absolute authority of Our Lord’s commandment that He gave just prior to His death (John 13:34).
This command to love was considered in chapter 2:7 of this epistle with a fine example of what this love entails submitted by the late Chester McCalley (1935-2000): “True love is the mental attitude that demands that we do what is best for another no matter what the cost to us.”5 The Lord Jesus is our extreme example of this type of love when He suffered the death of crucifixion in our place for our sins. The Apostle Paul reminded us of exactly who He died for: “For while we were still helpless, at the right time Christ died for the ungodly” (Romans 5:6). We must never forget that we were the ungodly ones for whom Christ gave His life.
John’s Divine Observation
It is impossible to study this epistle and not recognize John’s reiteration of the personal teachings he received from the Lord Himself, verse 24 is a clear example of this. For this reason, he is able to maintain that the “one who keeps His commandments abides in Him, and He in him.” This is the exact teaching of Our Lord’s to the Jews in John 6:53-58. There He equates the eating of His flesh and drinking of His blood with that of partaking of Him, “the bread of life” (John 6:48), for eternal life, concluding that the one who partakes, “abides in Me and I in him” (John 6:56). This is a theme that He restated to His disciples prior to His death in John 15:4-7 and then advanced His desire of unity even further:
“That they may all be one; even as You, Father, are in Me and I in You, that they also may be in Us, so that the world may believe that You sent Me.” (John 17:21; cf. John 14:23)
The believer who keeps His commandments exhibits consistent and unwavering fellowship with Our Lord and with the Father—an exclusive union that is unparalleled with any other relationship on earth.
What We Know
John attributes the origin of our knowing that “He abides in us” from the ultimate source of the Holy Spirit. This is the first mention of the Spirit in this epistle, although He was alluded to in 2:20, 27 as the Holy One who anointed us and teaches. The fact that we know this vital truth is not derived from emotional feelings or sensations. Instead, we know this by experiencing the Spirit’s effects upon our lives by His teaching (John 14:26; 16:13) that results in the renewing of our minds (Romans 12:2). This is His enabling power for us, the Word of God imbedded in our heart and mind, so that we respond to every circumstance of life in a manner which coincides with Biblical principles. And by this we are then able “to do the things that are pleasing in His sight” (1 John 3:22). The Apostle Paul taught this exact same truth:
That He would grant you, according to the riches of His glory, to be strengthened with power through His Spirit in the inner man, so that Christ may dwell in your hearts through faith (Ephesians 3:16–17a)
This is the essence of executing the Christian way of life—led by the Holy Spirit; walking in the Light; having fellowship with our Creator; enjoying His steadfast grace provision for time and eternity—for there is no other way.
Something to Ponder
Where do we stand on this truth? Do we build our relationship with God on His terms, upon the Rock—His Word? Or are we like the unwise, building upon sinking sands (Matthew 7:24-27)?[1] Bietenhard, H. (1964–). ὄνομα. In Theological Dictionary of the New Testament (G. Kittel, G. W. Bromiley, & G. Friedrich, Eds.). Grand Rapids, MI: Eerdmans, 5.250.
[2] Beetham, Christopher A. (Ed.) (2021). The Concise New International Dictionary of New Testament Theology and Exegesis, Grand Rapids, MI: Zondervan Academic, p. 650.
[3] Zodhiates, S. (2000). In The Complete Word Study Dictionary. Chattanooga, TN: AMG Publishers, G4100.
[4] Vine, W. E., Unger, M. F., & White, W., Jr. (1996). In Vine’s Complete Expository Dictionary of Old and New Testament Words. Nashville, TN: T. Nelson, 2.425.
[5] McCalley, Chester. http://wordoftruthkc.org/sites/default/files/file/I%20Corinthians%20Commentary.pdf, p. 96. [Retrieved August 14, 2024]
© 2025 David M. Rossi