If the world hates you, you know that it has hated me before [it hated] you.
References for John 15:18
If you were of the world, the world would love its own. But because you are not of the world, but I chose you out of the world, for this [reason] the world hates you.
Remember the word that I said to you: 'A slave is not greater than his master.' If they persecuted me, they will also persecute you. If they kept my word, they will keep yours also.
But they will do all these [things] to you on account of my name, because they do not know the one who sent me.
If I had not come and spoken to them, they would not have sin. But now they do not have a valid excuse for their sin.
The one who hates me hates my Father also.
If I had not done among them the works that no one else did, they would not have sin. But now they have both seen and hated both me and my Father.
But [this happened] so that the word that is written in their law would be fulfilled, 'They hated me without a reason.'
References for John 15:25
"When the Advocate comes, whom I will send to you from the Father--the Spirit of truth, who proceeds from the Father--that one will testify about me.
And you also will testify, because you have been with me from the beginning.