If the Philippines is serious about gender equality, one of the first legal hypocrisies it must confront is its treatment of infidelity. We cannot keep celebrating women’s empowerment in speeches and campaigns while the law itself still judges the unfaithfulness of wives and husbands by different standards. A country that claims to respect women cannot preserve a penal system that is harsher, quicker, and more suspicious when the accused is female.

The imbalance is not subtle. Under Article 333 of the Revised Penal Code, adultery is committed by a married woman who has sexual intercourse with a man not her husband, and that single act is enough to trigger criminal liability. Under Article 334, a married man is guilty of concubinage only under narrower conditions: if he keeps a mistress in the conjugal dwelling, has sexual intercourse under scandalous circumstances, or cohabits with another woman elsewhere. The penalty structure is also lighter for concubinage than for adultery. In plain terms, the law requires less to punish a wife and more to punish a husband.

That double standard did not appear by accident. It reflects an old social order that treated women as the keepers of family honor and men as the beneficiaries of excuse. It assumes that a wife’s sexuality must be policed more strictly, while a husband’s betrayal becomes punishable only when it is brazen enough, scandalous enough, or domestic enough to offend appearances. The law does not simply punish infidelity; it tells us whose infidelity society fears more. And for far too long, the answer has been: The woman’s.

That is why this issue matters beyond marriage. It is about what kind of equality the State is willing to defend. The Constitution says the State shall ensure the fundamental equality of women and men, and even recent separate opinions from Supreme Court justices have pointed to the bias embedded in the adultery-concubinage framework. In a 2025 opinion, Justice Marvic Leonen said the law discriminates on the basis of sex because the harsher regime falls on women. In another 2025 separate opinion, Justice Inting noted that lawmakers themselves had recognized the bias in the old marital-infidelity provisions and the heavier burden imposed on wives.

If Congress wants a clear first step, it should replace this unequal scheme with one standard for both spouses: the same definition, the same evidentiary threshold, and the same penalty. Equality does not mean excusing betrayal. It means rejecting the sexist premise that women deserve stricter moral surveillance than men. This is not a radical idea anymore. The Philippine Commission on Women has backed removing the distinction between adultery and concubinage, and a Senate bill filed in July 2025 proposed gender-neutral standards for offenses relating to marital fidelity while repealing Articles 333 and 334.

Some reformers go further and argue that adultery and concubinage should be decriminalized altogether, a position the Philippine Commission on Women has also publicly advanced. That debate deserves space, because the State should think carefully before turning intimate betrayal into a criminal case. But as long as the Philippines insists on keeping marital infidelity in the Penal Code, it has no moral or constitutional excuse for enforcing it through a gender hierarchy. The minimum demand of justice is simple: one law, one standard, one measure of accountability.

Gender equality will never be achieved by slogans alone. It begins when the law stops treating women as the primary guardians of virtue and men as the traditional beneficiaries of leniency. If the Philippines truly wants equality, it should start by striking this double standard out of the code itself. Anything less is not reform. It is delay.