John 15:9-17
9 "I have loved you even as the Father has loved me. Remain in my love. 10 When you obey me, you remain in my love, just as I obey my Father and remain in his love. 11 I have told you this so that you will be filled with my joy. Yes, your joy will overflow! 12 I command you to love each other in the same way that I love you. 13 And here is how to measure it—the greatest love is shown when people lay down their lives for their friends. 14 You are my friends if you obey me. 15 I no longer call you servants, because a master doesn't confide in his servants. Now you are my friends, since I have told you everything the Father told me. 16 You didn't choose me. I chose you. I appointed you to go and produce fruit that will last, so that the Father will give you whatever you ask for, using my name. 17 I command you to love each other.
1John 2:7&8
7 Dear friends, I am not writing a new commandment, for it is an old one you have always had, right from the beginning. This commandment—to love one another—is the same message you heard before. 8 Yet it is also new. This commandment is true in Christ and is true among you, because the darkness is disappearing and the true light is already shining.
1John 4:7&8
7 Dear friends, let us continue to love one another, for love comes from God. Anyone who loves is born of God and knows God. 8 But anyone who does not love does not know God—for God is love.