Passage
These things have I spoken to you that in me ye might have peace. In the world ye have tribulation; but be of good courage: I have overcome the world.
These things have I spoken to you that in me ye might have peace. In the world ye have tribulation; but be of good courage: I have overcome the world.
John 16:31 Jesus answered them, Do ye now believe?
John 16:32 Behold, [the] hour is coming, and has come, that ye shall be scattered, each to his own, and shall leave me alone; and [yet] I am not alone, for the Father is with me.
John 16:33 These things have I spoken to you that in me ye might have peace. In the world ye have tribulation; but be of good courage: I have overcome the world.
The verse centers on "world", "things", "spoken", "might", "peace", "tribulation", "good", and "courage". It is saying that the verse draws attention to "world" and "things", so its meaning should be read from those terms before moving to application.
The prior verse says "Behold the hour is coming and has...", giving immediate footing for "world" and "things". In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "world" and "things" with trust shaped by these words, not by a vague optimism outside the passage.