Not expressed by Christ’s Church.
It is Christ’s Catholic Church through Her Sacred Scriptures, Her Fathers and Doctors, Her Tradition and Her Magisterium which has raised marriage to the height of a sacrament and from the beginning protected the sanctity of the marital union from the errors of the Manicheans, the Stoics, from abortion and contraception and every other perversion of reason and faith.
tinyurl.com/3bhcaqv
**Morality
Of Genesis 38 verses 8-10:
Answer by Fr. John Echert (EWTN) on Mar-01-2009: **
“Pope Pius XI, quoting St. Augustine, the foremost Traditional source of marriage doctrine, dogmatically declared that this is indeed the proper interpretation of this Biblical teaching:
‘Since, therefore, the conjugal act is destined primarily by nature for the begetting of children, those who in exercising it deliberately frustrate its natural power and purpose sin against nature and commit a deed which is shameful and intrinsically vicious. Small wonder, therefore, if Holy Writ bears witness that the Divine Majesty regards with greatest detestation this horrible crime and at times has punished it with death. As St. Augustine notes, “Intercourse even with one’s legitimate wife is unlawful and wicked where the conception of the offspring is prevented. Onan, the son of Juda, did this and the Lord killed him for it.” Orthodox Jews have always interpreted the story of Onan in the same way: “The classical Jewish commentators—who can scarcely be accused of ignorance regarding Hebrew language, customs, law, and biblical literary genres—certainly saw in this passage of Scripture a condemnation of both unnatural intercourse and masturbation as such. A typical traditional Jewish commentary puts it thus: “[Onan] misused the organs God gave him for propagating the race to unnaturally satisfy his own lust, and he was therefore deserving of death.” All 3 of the major Protestant founders (Luther, Calvin, Wesley) left writings that confirm this interpretation of the Onan story. Although we don’t typically turn to these men for Catholic doctrine, they demonstrate that this has been the interpretation “always and everywhere.’ ”