Condoms and birth control pills were available during John Calvin's time?
Exactly what type of contraceptive did John Calvin condemn? A direct source citation would be helpful.
Btw, what would any of this prove one way or the other? Just curious. Be fruitful and multiply like rabbits.
Condoms were certainly used long before the time of John Calvin. Effective birth control pills were not available though certain potions were. The potions ranged from completely ineffective to having some contraceptive properties. Of course, none of this really matters for the purpose of my question because spilling the seed in a bag, on the ground, expunging it from the vagina, etc have no moral difference.
John Calvin called coitus interruptus (withdrawal, spilling seed) a monstrous act.
Commentary on Genesis 38
Verse 10. And the thing which he did displeased the LORD . Less neatly the Jews speak about this matter. I will contend myself with briefly mentioning this, as far as the sense of shame allows to discuss it.
It is a horrible thing to pour out seed besides the intercourse of man and woman. Deliberately avoiding the intercourse, so that the seed drops on the ground, is double horrible. For this means that one quenches the hope of his family, and kills the son, which could be expected, before he is born. This wickedness is now as severely as is possible condemned by the Spirit, through Moses, that Onan, as it were, through a violent and untimely birth, tore away the seed of his brother out the womb, and as cruel as shamefully has thrown on the earth. Moreover he thus has, as much as was in his power, tried to destroy a part of the human race. When a woman in some way drives away the seed out the womb, through aids, then this is rightly seen as an unforgivable crime. Onan was guilty of a similar crime, by defiling the earth with his seed, so that Tamar would not receive a future inheritor.
John Calvin's Bible Commentary - Genesis 38
What does it prove? At the very least it proves that either John Calvin himself didn't know how to interpret the bible
or most modern Calvinists don't know how to interpret the bible. Either way it is a very awkward situation.
Be fruitful and multiply like Rabbits? That is what the bible says minus the rabbits part. Self-mastery could be used at times as well if you don't want to start growing fur and long ears.