Before Spanish colonization, the Ibanag practiced anituan (spirit worship), where they honored anitu (ancestral spirits) through rituals and offerings. Their religious behavior evolved with the introduction of Catholicism, leading to a syncretic belief system that blends indigenous traditions with Christian practices. They observe pannakagunu (prayer rituals) that incorporate Catholic prayers alongside traditional invocations for protection and prosperity. Pannakakannu (ritual offerings) are performed to appease spirits and seek guidance, ensuring that ancestral and elemental forces remain benevolent.
The Ibanag pantheon includes several deities governing different aspects of life. Malyari, the supreme god, is associated with creation and the sun, while Binayo, the goddess of fertility and agriculture, is invoked for abundant harvests. Pabungan, the god of war, is revered for strength and protection, and Lattan, the goddess of the sea, ensures safe voyages for fishermen. Gakal, the god of the underworld, is responsible for judging souls, reinforcing the Ibanag belief in pannakagawagaw (judgment), where actions in life determine one's fate in the afterlife.
The Ibanag people strongly believe in pannakabalin (the power of actions), where good deeds bring blessings and misdeeds result in misfortune. Their view of the afterlife involves pannakagawagaw (judgment), where souls are evaluated based on their earthly actions. They practice pannakakannu (ritual offerings) to appease spirits and seek guidance, ensuring that ancestral and elemental forces remain benevolent. This belief system reinforces their moral values and communal responsibilities, encouraging individuals to act with integrity and respect