Matthew 10:16

Here is how it will be: I am sending you out like sheep among wolves; therefore you should be as crafty [Note: The Greek word here is "sensible"] as snakes, yet as harmless [Note: The Greek word is "sincere"] as doves.

Matthew 10:36

[In fact] a person's enemies will be members of his own family [i.e., in some cases].

Titus 3:3

For we [Christians] were also once foolish, disobedient, deceived, enslaved to various kinds of [evil] desires and [sinful] pleasures. [We used to] live in malice and envy, hating people and being hated by them.

Treasury of Scripture Knowledge

Summary

My soul hath long dwelt with him that hateth peace.

General references

Bible References

Soul

Matthew 10:16
Here is how it will be: I am sending you out like sheep among wolves; therefore you should be as crafty [Note: The Greek word here is "sensible"] as snakes, yet as harmless [Note: The Greek word is "sincere"] as doves.
Titus 3:3
For we [Christians] were also once foolish, disobedient, deceived, enslaved to various kinds of [evil] desires and [sinful] pleasures. [We used to] live in malice and envy, hating people and being hated by them.

General references

Romans 12:18
If it is at all possible, as far as your part is concerned, live peacefully with all people.