John 16:20-22  NAS

Truly, truly, I say to you, that you will weep and lament, but the world will rejoice; you will grieve, but your grief will turn into joy.  Whenever a woman is in labor she has pain, because her hour has come; but when she gives birth to the child, she no longer remembers the anguish because of the joy that the child has been born into the world.  Therefore you too have grief now; but I will see you again, and your heart will rejoice, and no one will take your joy away from you.