Pope Francis also reflected on last year's Jubilee Year of Mercy, which he said was a time of grace lived by the whole Church "with great faith and intense spirituality," especially the rediscovery of the Sacrament of Reconciliation.
"We cannot permit that such enthusiasm be diluted or forgotten," he said.
The Pope said that everyone who evangelizes should be committed to announcing the message of mercy, which is made concrete and visible in the lives of believers.
Furthermore, those who have the task of proclaiming the Gospel should remember the words of the Apostle Paul, who says in 1 Timothy 1:12-16: "I am grateful to him who has strengthened me, Christ Jesus our Lord, because he considered me trustworthy in appointing me to the ministry."
"I was once a blasphemer and a persecutor and an arrogant man, but I have been mercifully treated because I acted out of ignorance in my unbelief. Indeed, the grace of our Lord has been abundant, along with the faith and love that are in Christ Jesus," the Pope quoted.
"This saying is trustworthy and deserves full acceptance: Christ Jesus came into the world to save sinners. Of these I am the foremost."
The Church has a great responsibility to continue to be an instrument of mercy, Francis said.
"In this way, it can be easier to allow the reception of the Gospel to be perceived and lived as an event of salvation and it can bring a full and definitive meaning to personal and social life."