Matthew 5:39-41

but I say unto you, don't return evil for evil; on the contrary, if any one strike thee on thy right cheek, turn to him the other likewise.

Romans 12:18-21

do all you can to live peaceably, if it be possible, with all mankind.

1 Corinthians 6:6-8

but when a contest arises, you must refer the decision to infidels?

2 Timothy 2:24

a christian must not be litigious, but easy to all men, qualify'd to instruct,

Treasury of Scripture Knowledge

Summary

Strive not with a man without cause, if he have done thee no harm.

Bible References

General references

Matthew 5:39
but I say unto you, don't return evil for evil; on the contrary, if any one strike thee on thy right cheek, turn to him the other likewise.
Romans 12:18
do all you can to live peaceably, if it be possible, with all mankind.
1 Corinthians 6:6
but when a contest arises, you must refer the decision to infidels?
2 Timothy 2:24
a christian must not be litigious, but easy to all men, qualify'd to instruct,