Mark 9:50

Salt is good; but, if the salt becomes saltless, with what will ye season it? Have salt in yourselves, and be at peace one with another."

Romans 12:18

if it be possible, so far as it depends on you, being at peace with all men;

Matthew 5:13

"Ye are the salt of the earth; but, if the salt become tasteless, with what shall it be salted? It is henceforth good for nothing, except, when cast without, to be trodden under foot by men.

2 Corinthians 13:11

Finally, brethren, farewell. Be perfected, be comforted, think the same thing; be at peace; and the God of love and peace will be with you.

Colossians 4:6

Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer each one.

Luke 14:34-35

Salt, therefore, is good; but if even the salt become tasteless, with what shall it be seasoned?

Ephesians 4:29

Let no corrupt speech proceed out of your mouth, but whatever is good for the supplying of the need, that it may give grace to those who hear.

1 Thessalonians 5:13

and to esteem them very highly in love because of their work. Be at peace among yourselves.

Hebrews 12:14

Pursue peace with all, and the holiness without which no one shall see the Lord;

Mark 9:34

But they were silent; for they disputed with one another in the way, who was the greatest.

John 13:34-35

A new commandment I give to you, that ye love one another; even as I loved you, that ye love one another.

John 15:17-18

These things I command you, that ye may love one another.

Romans 14:17-19

for the Kingdom of God is not food and drink, but righteousness and peace and joy in the Holy Spirit.

Galatians 5:14-15

for the whole law has been fulfilled in one word, in this: "You shall love your neighbor as yourself."

Galatians 5:22

But the fruit of the Spirit is love, joy, peace, long-suffering, kindness, goodness, faith,

Ephesians 4:2-6

with all humility and meekness, with long-suffering, bearing with one another in love;

Ephesians 4:31-32

Let all bitterness, and wrath, and anger, and clamor, and reviling, be put away from you, with all wickedness;

Philippians 1:27

Only demean yourselves in a manner worthy of the Gospel of Christ; that, whether coming and seeing you, or being absent, I may hear of your affairs, that ye are standing fast in one spirit, with one soul striving together for the faith of the Gospel;

Philippians 2:1-3

If there is, therefore, any consolation in Christ, if any encouragement of love, if any fellowship of the Spirit, if any tender affections and compassions,

Colossians 3:12

Put on, therefore, as God's elect, holy and beloved, tender affections of compassion, kindness, humility, meekness, long-suffering;

2 Timothy 2:22

But flee youthful desires; and pursue righteousness, faith, love, peace with those calling upon the Lord out of a pure heart.

James 1:20

for man's wrath works not God's righteousness.

James 3:14-18

But, if ye have bitter jealousy and contention in your heart, do not boast and lie against the truth.

1 Peter 3:8

And, finally, be ye all of one mind, compassionate, loving as brethren, tender-hearted, humble-minded;

Treasury of Scripture Knowledge

Summary

Salt is good: but if the salt have lost his saltness, wherewith will ye season it? Have salt in yourselves, and have peace one with another.

General references

Bible References

Is good

Matthew 5:13
"Ye are the salt of the earth; but, if the salt become tasteless, with what shall it be salted? It is henceforth good for nothing, except, when cast without, to be trodden under foot by men.
Luke 14:34
Salt, therefore, is good; but if even the salt become tasteless, with what shall it be seasoned?

Have salt

Ephesians 4:29
Let no corrupt speech proceed out of your mouth, but whatever is good for the supplying of the need, that it may give grace to those who hear.
Colossians 4:6
Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer each one.

Have peace

John 13:34
A new commandment I give to you, that ye love one another; even as I loved you, that ye love one another.
John 15:17
These things I command you, that ye may love one another.
Romans 12:18
if it be possible, so far as it depends on you, being at peace with all men;
Romans 14:17
for the Kingdom of God is not food and drink, but righteousness and peace and joy in the Holy Spirit.
2 Corinthians 13:11
Finally, brethren, farewell. Be perfected, be comforted, think the same thing; be at peace; and the God of love and peace will be with you.
Galatians 5:14
for the whole law has been fulfilled in one word, in this: "You shall love your neighbor as yourself."
Ephesians 4:2
with all humility and meekness, with long-suffering, bearing with one another in love;
Philippians 1:27
Only demean yourselves in a manner worthy of the Gospel of Christ; that, whether coming and seeing you, or being absent, I may hear of your affairs, that ye are standing fast in one spirit, with one soul striving together for the faith of the Gospel;
Philippians 2:1
If there is, therefore, any consolation in Christ, if any encouragement of love, if any fellowship of the Spirit, if any tender affections and compassions,
Colossians 3:12
Put on, therefore, as God's elect, holy and beloved, tender affections of compassion, kindness, humility, meekness, long-suffering;
2 Timothy 2:22
But flee youthful desires; and pursue righteousness, faith, love, peace with those calling upon the Lord out of a pure heart.
Hebrews 12:14
Pursue peace with all, and the holiness without which no one shall see the Lord;
James 1:20
for man's wrath works not God's righteousness.
James 3:14
But, if ye have bitter jealousy and contention in your heart, do not boast and lie against the truth.
1 Peter 3:8
And, finally, be ye all of one mind, compassionate, loving as brethren, tender-hearted, humble-minded;

General references

Romans 12:18
if it be possible, so far as it depends on you, being at peace with all men;