17 And he said to them, What subjects are these about which you confer together? and why are you dejected?
Luke 24:17 Cross References - Living_Oracles
John 16:6
6 But because of those things which I have foretold you, you are overwhelmed with grief.
John 16:20-22
20 Most assuredly, I say to you, you will weep and lament, but the world will rejoice: you will be sorrowful, but your sorrow shall be turned into joy.
21 A woman in travail has sorrow, because her hour is come. But when her son is born, she remembers her anguish no longer; for joy that she has brought a man into the world.
22 So, you, at present, are in grief; but I will visit you again, and your hearts shall be joyful, and none shall rob you of your joy.