Matthew 10:35-36
For I came to set a person at odds against his father, and a daughter against her mother, and a daughter-in-law against her mother-in-law.
Galatians 5:17
For what your body wants is in conflict with what the Holy Spirit wants [for you], and what the Holy Spirit wants conflicts with what your body wants, for these [two desires] are contrary to one another, so that you do not [always] do what you [really] want to.
Ephesians 6:12
For our struggle is not [actually] against human beings, but against rulers and authorities and leaders of this world's darkness, and against the spiritual forces of evil in the heavenly realms. [Note: "Heavenly realms" here refers to the struggle against Satanic powers which permeates life around us].
Revelation 6:2
So, I looked, and before me [stood] a white horse, and the man riding on it had a bow. And he was given a crown, and he rode out as a conqueror [going out] to conquer [someone].