Does the Bible explicitly forbid contraceptives?

No. The Bible does not mention modern contraceptives. The case of Onan (Gen 38) concerns his refusal to fulfill the levirate duty, not a general condemnation of birth control.

Is there a difference between a contraceptive and an abortifacient for the Christian?

Yes, and it is an important distinction. Contraceptives that prevent fertilization do not interrupt an already-formed life. Methods that act after fertilization (preventing the implantation of an embryo) raise serious ethical questions in light of the sanctity of life from conception.

Can sex in marriage exist for pleasure alone, apart from reproduction?

Yes. The Song of Songs celebrates marital intimacy with no focus on procreation, and 1 Cor 7:3-5 addresses the couple's sexual life in terms of mutual service and protection — not only reproduction.

What should I do if my spouse and I disagree about birth control?

1 Cor 7:5 teaches that decisions about the couple's sexual life require mutual agreement. Seek dialogue, pray together, and if needed, seek pastoral counsel. Unilateral imposition runs contrary to the spirit of love and service in Christian marriage.

Is planning the number of children a lack of faith?

Not necessarily. The Bible values both God's sovereignty over life (Ps 127:3) and wisdom in family planning (Prov 24:3-4). Responsible planning and trusting God are not opposites.

Does the Bible permit birth control?

The Bible does not directly address birth control, yet it provides solid principles to guide Christian couples in this decision. Marital sexuality is God's gift — for intimacy, mutual pleasure, and, when He grants it, for the bearing of children. The question is not one of a textual prohibition, but of values and intentions examined in the light of Scripture.

What the Bible says about children and sexuality

From the beginning, in Gen 1:28, God blessed the human couple with the capacity to generate life: "Be fruitful and multiply." Children are described as a heritage and reward from God (Ps 127:3). At the same time, the Song of Songs celebrates marital intimacy with no reference whatsoever to procreation — evidence that sex within marriage has its own inherent value beyond bearing children.

Heb 13:4 declares that "marriage should be honored by all, and the marriage bed kept pure." This protects the couple's sexuality within marriage without restricting it to reproduction alone. 1 Cor 7:3-5 instructs husbands and wives not to deprive one another, recognizing the dimension of intimacy and mutual protection that conjugal sexuality provides.

The case of Onan — the most cited text

Gen 38:9-10 recounts the death of Onan for "spilling his seed on the ground." Some traditions read this text as a condemnation of any form of birth control. Read in context, however, Onan's sin was the deliberate refusal to fulfill the levirate duty — to give offspring to his deceased brother — out of greed, so that the inheritance would remain his. Divine judgment fell on his motivation (dishonoring his brother and defrauding his sister-in-law), not on the act of preventing conception as such. Using this text to prohibit all contraceptive methods removes the passage from its narrative and legal context.

What the Christian tradition says

Faithful Christians disagree on this question. The Roman Catholic Church teaches that every conjugal act must remain open to procreation, rejecting artificial methods. Many Protestant and evangelical churches, on the other hand, hold that a couple may responsibly and prayerfully use contraceptive methods that do not interfere with an already-formed embryo — drawing a distinction between true contraceptives (which prevent fertilization) and abortifacients (which prevent the implantation of an already-formed embryo). This distinction is theologically and ethically significant: birth control that acts before fertilization does not interrupt a life that has already begun.

Biblical principles for the decision

Although the Bible does not list approved methods, it offers clear principles:

Sanctity of life from conception — Ps 139:13-16 and Jer 1:5 describe God forming life in the womb. Methods that may destroy an already-formed embryo raise a serious moral question for the Christian.
Wisdom and stewardship — Prov 24:3-4 speaks of building a family with wisdom. Responsible family planning can reflect stewardship rather than disobedience.
Joint decision and prayer — 1 Cor 7:5 shows that decisions about the couple's sexual life are to be made in mutual agreement. A unilateral decision — whether to have more children or to avoid them indefinitely — runs against the spirit of mutual service.
Openness to God's sovereignty — Ps 127:3 reminds us that children come from the Lord. The Christian lives in the tension between planning wisely and trusting in God's sovereignty over life.

Practical application

Christian couples considering birth control should ask: Does the method prevent fertilization or act after it? Is the intention responsibility or a permanent rejection of children? Was the decision made together, with prayer and pastoral counsel? Scripture does not provide a list of forbidden methods, but it shapes the couple's conscience so that each decision reflects reverence for God, mutual love, and openness to the life He may choose to grant.

What the Bible clearly forbids is intentional abortion — the suppression of a life already begun — and the self-centered, permanent refusal of children as a rejection of God's blessing. Within those boundaries, the couple has freedom of conscience, informed by the Word and the Spirit.