The importance for Christians to hold the line, that we are born for spiritual combat comes from the Vicar of Christ, Pope Leo XIII (1810 - 1903):
"To recoil before an enemy, or to keep silence when from all sides such clamors are raised against truth, is the part of a man either devoid of character or who entertains doubt as truth of what he professes to believe. The only ones who win when Christians stay "quiet" are the enemies of truth. The silence of Catholics is particularly disturbing because frequently a few bold words would have vanquished the false ideas.
What is the need today to save society?
The group of Cardinals began to deliberate this question, one responded, "Build Catholic Schools", another one cried out, "build more churches", and yet another answered "speed up the recruiting of priests". Pope St. Pius X took the opportunity to say
"No, the most necessary thing of all at this time, is for every parish to posses a group of laymen who will be at the same time virtuous, enlightened, resolute truly apostolic". Jean-Baptiste Chautard "The Soul of the Apostolate"
A major truth is that without the Catholic priest, there is no Catholic Church, yet, without the faithful laity, there would be no Catholic priests. The Lord Jesus calls all who hear His voice to follow Him. The Church gives us the Scripture to proclaim God's Word, the Church gives us the grace through the Ministry of the Church to live the life of truth. We are to stand up for it.