17 And He said to them, "What are these words which you are exchanging with one another as you walk, and you have a gloomy look?"
Luke 24:17 Cross References - CAB
Ezekiel 9:4-6
4 and said to him, Go through the midst of Jerusalem, and set a mark on the foreheads of the men that groan and that grieve for all the iniquities that are done in the midst of them.
5 And He said to the first in my hearing, Go after him into the city, and strike: and let not your eyes spare, neither have mercy.
6 Utterly slay old man and youth, and virgin and infants and women: but do not go near any on whom is the mark: begin at My sanctuary. So they began with the elder men who were within in the house.
John 16:6
6 "But because I have spoken these things to you, sorrow has filled your heart.
John 16:20-22
20 Most assuredly I say to you that you will weep and lament, but the world will rejoice; and you will be grieved, but your grief will be turned into joy.
21 A woman, whenever she gives birth, has sorrow, because her hour has come; but whenever the child is born, she no longer remembers the anguish, on account of the joy that a human being has been born into the world.
22 Therefore you also now have sorrow; but I will see you again and your heart will rejoice, and your joy no one will take from you.