On Good Friday, Pope Francis reminded the poor, immigrants and victims of human trafficking that the mystery of Christ’s death and resurrection was for them.

The cross serves as a warning to the powerful and a message of hope for the poor and oppressed, said the preacher of the papal household.

For pilgrims flocking to Rome’s famed Scala Santa this week as they commemorate the events leading up to Jesus’ crucifixion and death, the opportunity to climb the relic on the bare marble for the...