Humanae Vitae:
“18. It is to be anticipated that perhaps not everyone will easily accept this particular teaching. There is too much clamorous outcry against the voice of the Church, and this is intensified by modern means of communication. But it comes as no surprise to the Church that she, no less than her divine Founder, is destined to be a “sign of contradiction.” (22) She does not, because of this, evade the duty imposed on her of proclaiming humbly but firmly the entire moral law, both natural and evangelical.”
“The Church, in fact, cannot act differently toward men than did the Redeemer. She knows their weaknesses, she has compassion on the multitude, she welcomes sinners. But at the same time she cannot do otherwise than teach the law. For it is in fact the law of human life restored to its native truth and guided by the Spirit of God. (24) Observing the Divine Law.”
“28. And now, beloved sons, you who are priests, you who in virtue of your sacred office act as counselors and spiritual leaders both of individual men and women and of families—We turn to you filled with great confidence. For it is your principal duty—We are speaking especially to you who teach moral theology—to spell out clearly and completely the Church’s teaching on marriage.”
“We implore you, to give a lead to your priests who assist you in the sacred ministry, and to the faithful of your dioceses, and to devote yourselves with all zeal and without delay to safeguarding the holiness of marriage, in order to guide married life to its full human and Christian perfection. Consider this mission as one of your most urgent responsibilities at the present time. As you well know, it calls for concerted pastoral action in every field of human diligence, economic, cultural and social.”
…
Pope Francis:
“We cannot insist only on issues related to abortion, gay marriage and the use of contraceptive methods. This is not possible. I have not spoken much about these things, and I was reprimanded for that. But when we speak about these issues, we have to talk about them in a context. The teaching of the church, for that matter, is clear and I am a son of the church, but it is not necessary to talk about these issues all the time.
The dogmatic and moral teachings of the church are not all equivalent. The church’s pastoral ministry cannot be obsessed with the transmission of a disjointed multitude of doctrines to be imposed insistently."