Jesus concluded his final discourse with his disciples before his death in John 16:12-33. He developed previous lessons and added that they would have temporary sorrow that would change into lasting joy. In spite of our suffering in this world, Christians can have joy, peace, and courage, because Jesus has overcome the world.
Happy are those who have the kingdom of God, even if they lack much on earth, and the most pitiful are those who do...
In a second vision, Daniel saw into the future when the Jews would need to remain faithful under terrible persecution.
Our little work of accepting each other in the church is part of the big work God is doing in the world.