What are the scriptural roots of the Catholic ban on birth control?
It begins in Genesis 1:28 when God blessed Adam and Eve, saying, “Be fertile and multiply…”.
However, after the Fall, man wasted no time developing ingenious methods of contraception such as wool that absorbed sperm, poisons that fumigated the uterus, potions…In some centuries, even condoms were used (though made out of animal skin rather than latex).
One form of artificial contraception condemned in the bible is Coitus interruptus, a method used by Onan in Genesis 38:8-10:
Then Judah said to Onan, “Unite with your brother’s widow, in fulfillment of your duty as brother-in-law, and thus preserve your brother’s line.” Onan, however, knew that the descendants would not be counted as his; so whenever he had relations with his brother’s widow, he wasted his seed on the ground, to avoid contributing offspring for his brother. What he did greatly offended the Lord, and the Lord took his life too.
Scripture also condemns sterilization in Deuteronomy 23:1:
“He that is wounded in the stones, or hath his privy member cut off, shall not enter into the congregation of the Lord.”
For more scriptural support against the use of artificial birth control, I recommend the following:
The Bible and Birth Control by Charles Provan (a Protestant)
The Sin of Onan by Mark Brumley