Our Lord Jesus Christ said "This is My commandment, that you love one another, just as I have loved you.” John 15:12. “If you keep my commandments, you will remain in my love; even as I have kept my Father's commandments, and remain in his love.” John 15:10.
Apostle John made the following statements to affirm the commands of our Lord Jesus Christ. “By this we know that we love the children of God, when we love God and observe His commandments.” 1 John 5:2. “If anyone says, "I love God," and yet hates his brother or sister, he is a liar. For the person who does not love his brother or sister whom he has seen cannot love God whom he has not seen.” 1 John 4:20. No one has ever seen God; but if we love one another, God remains in us, and His love is perfected in us.” 1 John 4:12.