John 15:18
18If the world hates you, you know that it has hated me before it hated you.
Hatred is framed as a condition they may meet, not a surprise. It hated him first. The order matters: their coming rejection is participation in his, not proof they have misread the mission. Wesley will soon say the world in every age hates those whose maxims are opposite to its own.
Classical Arminians: this is pastoral realism, not fatalism. The world can hate and still be addressed (vv. 22–24 will call that hatred inexcusable). Being hated does not mean they have left the vine; it often means they have not gone back into the world.
Calvin: the gospel cannot be published without driving the world to rage; godly teachers will not avoid that hatred. Christ tells them early so they will not be raw recruits, valiant until the battle starts. He also confirms them by his example: it is not reasonable that he be hated and they, who represent him, have the world on their side.
The world’s rage is the world’s continuity with itself. Their task is not to win the world’s fondness but to remain his. Hatred of the Master is the context of their ministry, not a sign that the choosing of vv. 16 and 19 has failed.