Objection: The Bible doesn’t condemn birth control. Modern birth control methods were unknown in Bible times, and the Bible is, therefore, silent on the matter. The closest that Scripture comes to condemning birth control is Genesis chapter 38, the account of Judah’s sons Er and Onan. Onan’s motivation was selfish; he used Tamar for his own pleasure, but refused to perform his legal duty (from Deuteronomy 25:5-10) of creating an heir for his deceased brother. This passage (in Genesis 38) is often used as evidence that God does not approve of birth control. However, it was not the act of contraception that caused the Lord to put Onan to death as you say; it was Onan’s selfish motives behind the action. God did not kill Onan for practicing contraception but because he refused to obey the Law from Deuteronomy 25:5-10 that instructed brothers to raise up seed for his dead brother. This fact proves that God doesn’t directly condemn contraception in the Bible. Contraception, by definition, is merely the opposite of conception. It is not the use of contraception that is wrong or right. As we learned from Onan, it is the motivation behind the contraception that determines if it is right or wrong. Ultimately, a couple’s motives for delaying childbearing, using contraception, or even having numerous children, are between them and God. Therefore, we can find no biblical admonition against the use of birth control in and of itself.