1 John 2:7

Brethren, a new command I write not to you, but an old command, that ye had from the beginning -- the old command is the word that ye heard from the beginning;

1 John 3:11

because this is the message that ye did hear from the beginning, that we may love one another,

Leviticus 19:18

Thou dost not take vengeance, nor watch the sons of thy people; and thou hast had love to thy neighbour as thyself; I am Jehovah.

2 John 1:5-6

and now I beseech thee, Kyria, not as writing to thee a new command, but which we had from the beginning, that we may love one another,

Leviticus 19:34

as a native among you is the sojourner to you who is sojourning with you, and thou hast had love to him as to thyself, for sojourners ye have been in the land of Egypt; I am Jehovah your God.

Deuteronomy 6:5

and thou hast loved Jehovah thy God with all thy heart, and with all thy soul, and with all thy might,

Matthew 5:43

'Ye heard that it was said: Thou shalt love thy neighbour, and shalt hate thine enemy;

Matthew 22:37-40

And Jesus said to him, 'Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thine understanding --

Mark 12:29-34

and Jesus answered him -- 'The first of all the commands is, Hear, O Israel, the Lord is our God, the Lord is one;

Acts 17:19

having also taken him, unto the Areopagus they brought him, saying, 'Are we able to know what is this new teaching that is spoken by thee,

Romans 13:8-10

To no one owe anything, except to love one another; for he who is loving the other -- law he hath fulfilled,

Galatians 5:13-14

For ye -- to freedom ye were called, brethren, only not the freedom for an occasion to the flesh, but through the love serve ye one another,

James 2:8-12

If, indeed, royal law ye complete, according to the Writing, 'Thou shalt love thy neighbour as thyself,' -- ye do well;

1 John 2:24

Ye, then, that which ye heard from the beginning, in you let it remain; if in you may remain that which from the beginning ye did hear, ye also in the Son and in the Father shall remain,

1 John 3:23

and this is His command, that we may believe in the name of His Son Jesus Christ, and may love one another, even as He did give command to us,

Treasury of Scripture Knowledge

Summary

Brethren, I write no new commandment unto you, but an old commandment which ye had from the beginning. The old commandment is the word which ye have heard from the beginning.

General references

Bible References

I write

1 John 3:11
because this is the message that ye did hear from the beginning, that we may love one another,
Acts 17:19
having also taken him, unto the Areopagus they brought him, saying, 'Are we able to know what is this new teaching that is spoken by thee,
2 John 1:5
and now I beseech thee, Kyria, not as writing to thee a new command, but which we had from the beginning, that we may love one another,

But

Leviticus 19:18
Thou dost not take vengeance, nor watch the sons of thy people; and thou hast had love to thy neighbour as thyself; I am Jehovah.
Deuteronomy 6:5
and thou hast loved Jehovah thy God with all thy heart, and with all thy soul, and with all thy might,
Matthew 5:43
'Ye heard that it was said: Thou shalt love thy neighbour, and shalt hate thine enemy;
Matthew 22:37
And Jesus said to him, 'Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thine understanding --
Mark 12:29
and Jesus answered him -- 'The first of all the commands is, Hear, O Israel, the Lord is our God, the Lord is one;
Romans 13:8
To no one owe anything, except to love one another; for he who is loving the other -- law he hath fulfilled,
Galatians 5:13
For ye -- to freedom ye were called, brethren, only not the freedom for an occasion to the flesh, but through the love serve ye one another,
James 2:8
If, indeed, royal law ye complete, according to the Writing, 'Thou shalt love thy neighbour as thyself,' -- ye do well;

General references

John 15:12
'This is my command, that ye love one another, according as I did love you;