What is the Church’s constant teaching on contraception (artificial birth control)?

“You shall not practice birth control, you shall not murder a child by abortion, nor kill what is begotten”
~The Didache, 2, first Christian catechism, written in first century AD

“Intercourse even with one’s legitimate wife is unlawful and wicked where the conception of the offspring is prevented.”
~ St. Augustine, De coniug. adult., lib. II, n. 12, Gen, XXXVIII, 8-10

“After the sin of homicide whereby a human nature already in existence is destroyed, this type of sin appears to take next place, for by it the generation of human nature is precluded.”
~ St. Thomas Aquinas, Summa Contra Gentiles, 3, 122, 9, on sexual acts not essentially open to life.

“No reason, however grave, may be put forward by which anything intrinsically against nature may become conformable to nature and morally good. 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.”
~ Pope Pius XI, Casti Connubi, 54

“Every action which, whether in anticipation of the conjugal act, or in its accomplishment, or in the development of its natural consequences, proposes, whether as an end or as a means, to render procreation impossible is intrinsically evil.”
~ Pope St. Paul VI, Humanae Vitae, 14; Catechism of the Catholic Church, 2370

“Despite their differences of nature and moral gravity, contraception and abortion are often closely connected, as fruits of the same tree.”
~ Pope St. John Paul II, Evangelium Vitae, 13

“There is a need always to keep in mind the inseparable connection between the unitive and procreative meanings of the conjugal act. When these two meanings are consciously affirmed, the generosity of love is born and strengthened in the hearts of the spouses, disposing them to welcome new life. Lacking this, the experience of sexuality is impoverished, reduced to sensations that soon become self-referential, and its dimensions of humanity and responsibility are lost.”
~ Pope Francis, NFP conference, 2023

Gal 5:20; Rev 9:21, 21:8, 22:15: The Greek word ‘pharmakeia’ in these Bible passages, often translated as potions or sorcery and listed as one of the sins precluding one from the kingdom of God, includes drugs to cause temporary sterility or abortion.