John 13:34-35

"A new command I give you: Love one another. As I have loved you, so you must love one another. By this everyone will know that you are my disciples, if you love one another." 

A new command I give you 
John 15:12  "My command is this: Love each other as I have loved you."
1 John 2:7-8  Dear friends, I am not writing you a new command but an old one, which  you have had since the beginning. This old command is the message you have heard. Yet I am writing you a new command; its truth is seen in him and in you, because the darkness is passing the true light is already shining.

Love one another 
1 John 3:11  For this is the message you heard from the beginning: We should love one another.
1 John 4:7  Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God.
1 John 4:10-11  This is love: not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins. Dear friends, since God so loved us, we also ought to love one another.
1 Thessalonians 4:9  Now about your love for one another we do not need to write to you, for you yourselves have been taught by God to love each other.
1 Peter 1:22  Now that you have purified yourselves by obeying the truth so that you have sincere love for each other, love one another deeply, from the heart.

As I have loved you, so you must love one another 
Ephesians 5:1-2  Follow God's example, therefore, as dearly loved children and walk in the way of love, just as Christ loved us and gave himself up for us, as a fragrant offering and sacrifice to God.

By this everyone will know that you are my disciples, if you love one another 
1 John 3:14  We know that we have passed from death to life, because we love each other. Anyone who does not love remains in death.
1 John 4:20  Whoever claims to love God yet hates a brother or sister is a liar. For whoever does not love their brother and sister, whom they have seen, cannot love God, whom they have not seen.

Scriptures taken from the Holy Bible, New International Version® NIV®, 
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