1 John 3:23

His command is this, that we should believe in the name of His Son Jesus Christ and practice loving one another, just as He commanded us to do.

John 6:29

Jesus answered them, "The work that God demands of you is this, to believe in the messenger whom He has sent."

John 13:34

I give you a new command, to love one another. Just as I have loved you, you too must love one another.

John 15:12

This is my command to you, to keep on loving one another as I have loved you.

1 John 3:11

it is so because the message that you have heard from the beginning is this: We should love one another.

Matthew 22:39

The second is like it: 'You must love your neighbor as you do yourself.'

Mark 9:7

Then a cloud came and was circling over them, and a voice came out of the cloud, "This is my Son, my Beloved; keep on listening to Him!"

John 14:1

"Stop letting your hearts be troubled; keep on believing in God, and also in me.

John 17:3

Now eternal life means knowing you as the only true God and knowing Jesus your messenger as Christ.

Acts 16:31

They answered, "Believe on the Lord Jesus, and you and your household will be saved."

Ephesians 5:2

and practice living in love, just as Christ loved you too and gave Himself for you as a fragrant offering and sacrifice to God.

1 Thessalonians 4:9

Now as to brotherly love, you have no need of anyone's writing you, for you have yourselves been taught by God to love one another,

1 Timothy 1:15

It is a saying to be trusted and deserves our fullest acceptance, that Christ Jesus came into the world to save sinners; and I am the foremost of them.

1 Peter 1:22

Since you have purified your souls by obeying the truth, in sincere love for the brotherhood you must love one another heartily and fervently,

1 Peter 4:8

Above everything else keep your love for one another fervent, because love covers up a multitude of sins.

1 John 2:8-10

Yet it is a new command that I am writing you; it is true in Him and in you, because the darkness is passing away and the true light is already shining.

1 John 4:21

This is the command that we get from Him, that whoever loves God loves his brother too.

Treasury of Scripture Knowledge

Summary

And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.

Bible References

His commandment

Mark 9:7
Then a cloud came and was circling over them, and a voice came out of the cloud, "This is my Son, my Beloved; keep on listening to Him!"
John 6:29
Jesus answered them, "The work that God demands of you is this, to believe in the messenger whom He has sent."
John 14:1
"Stop letting your hearts be troubled; keep on believing in God, and also in me.
John 17:3
Now eternal life means knowing you as the only true God and knowing Jesus your messenger as Christ.
Acts 16:31
They answered, "Believe on the Lord Jesus, and you and your household will be saved."
1 Timothy 1:15
It is a saying to be trusted and deserves our fullest acceptance, that Christ Jesus came into the world to save sinners; and I am the foremost of them.

Love

1 John 3:11
it is so because the message that you have heard from the beginning is this: We should love one another.
1 John 2:8
Yet it is a new command that I am writing you; it is true in Him and in you, because the darkness is passing away and the true light is already shining.
1 John 4:21
This is the command that we get from Him, that whoever loves God loves his brother too.
Matthew 22:39
The second is like it: 'You must love your neighbor as you do yourself.'
John 13:34
I give you a new command, to love one another. Just as I have loved you, you too must love one another.
John 15:12
This is my command to you, to keep on loving one another as I have loved you.
Ephesians 5:2
and practice living in love, just as Christ loved you too and gave Himself for you as a fragrant offering and sacrifice to God.
1 Thessalonians 4:9
Now as to brotherly love, you have no need of anyone's writing you, for you have yourselves been taught by God to love one another,
1 Peter 1:22
Since you have purified your souls by obeying the truth, in sincere love for the brotherhood you must love one another heartily and fervently,
1 Peter 4:8
Above everything else keep your love for one another fervent, because love covers up a multitude of sins.

General references

Luke 11:28
But He said, "Yes, but better still, blessed are those who listen to God's message and practice it!"
John 15:12
This is my command to you, to keep on loving one another as I have loved you.
Hebrews 13:1
You must let your brotherly love continue.
1 John 4:11
Dearly beloved, if God has loved us so, we ought to love one another too.
1 John 5:2
This is how we can be sure that we love the children of God, by continuing to love God and to obey His commands.