John 16:33

I have said these things to you, that in me you may have peace. In the world you will have tribulation. But take heart; I have overcome the world.”

The Bad News: Jesus himself says that if we follow him in this life we will have tribulation (affliction, distress, distress of mind). When you think about it, this is a fairly interesting way to gain followers, which helps to explain that when Crist was arrested he was down to 11 disciples, some women, a village in Samaria, a syro-Phoenician woman, and a few others.
The Good News: Christ has overcome the world.  This is a fascinating statement. The verb is nikao which means “to conquer, overcome, vanquish.” Christ uses the perfect verb tense which is used when something happened in the past, is true in the present, and will be true into the future. So sure is Christ of his death and resurrection (appeasing God’s wrath against sinners) that he speaks as if it is already an accomplished fact, which in a weird way, it is.
This verse it Martin Luther so powerfully that in a letter to Philip Melancthon he said that it was worthy to be carried from Rome to Jerusalem on one’s knees.