"If the world hates you, you know that it hated Me before [it hated] you.
For sure this world hate us because we have chosen to follow Jesus, but what a privilege it is to know that people can tell that you are different. Getting to know Jesus is the best thing that happened in my life.
If you were of the world, the world would love its own. Yet because you are not of the world, but I chose you out of the world, therefore the world hates you.
This is the difference between a real Christian and self renounce Christian, this verse is very clear; if you are happy doing things that pleases this world and you easily blend in with non-Christians, what is that tell you? that you are not a real Christian.
When you start seen rejections from old "friends" because of your walk with the Lord, then be happy, you are reflecting Jesus, you are representing Jesus the right way, you are not of this world.
Remember the word that I said to you, 'A servant 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.
We need to listen to Jesus words, if Jesus was persecuted, arrested and kill. We should expect the same thing, we might not get kill like Jesus did (at least in the US) but unfortunately many countries around the world are killing Christians. Here in the US and the rest of the American Continent what's happening is...that friends will turn against friends, family members will mock their Christians relatives, and some times those family members will walk away from you.
If this is what's happening to you, that only means that you are doing something right (you are walking with Jesus) what a privilege.
We need to pray and ministry to those that don't know Jesus or to the ones that know Jesus but they are not walking with Him.