The pope's comments came during his first audience with ambassadors of the Holy See, headquarters of the church, ANSA reported.
Francis asked the ambassadors to "work to build peace" and said "there can be no peace without truth."
The pope appealed to his audience to "protect those who suffer as a result of poverty."
Francis said there are "many poor people ... still in the world" and told the diplomatic corps to "guard those who suffer because of indigence."
Notable deaths of 2014 [PHOTOS]