σκοτεινός

full of darkness, dark

Definition

The adjective σκοτεινός (skoteinos) means 'full of darkness' or 'characterized by darkness.' It describes not just the absence of physical light, but a state of moral and spiritual obscurity. In its three New Testament uses, it consistently refers to the condition of the 'eye' as a metaphor for one's spiritual perception. For example, in Matthew 6:23 and Luke 11:34, Jesus teaches that if the 'eye' (the guiding principle within a person) is 'dark' (σκοτεινός), then the whole person is filled with darkness, indicating a corrupted inner life that blocks divine light.

Biblical Usage

This word is used exclusively in the teachings of Jesus, recorded in the Gospels of Matthew and Luke. All three occurrences (Matthew 6:23; Luke 11:34, 11:36) appear in the context of a parable about the eye as the 'lamp of the body.' The usage is metaphorical, describing the spiritual condition of a person's heart or inner guiding principle. When the 'eye' is σκοτεινός, it signifies a profound internal darkness that affects one's entire being and understanding.

Etymology

Derived from the noun σκότος (skotos, G4655), meaning 'darkness.' The suffix -εινός forms an adjective indicating 'full of' or 'characterized by' the quality of the root. Thus, σκοτεινός literally means 'full of darkness.' It is closely related to the verb σκοτίζω (skotizō, G4656), 'to darken.'

Semantic Range

This word is theologically significant as it captures Jesus's teaching on the source of human spiritual condition. It moves beyond simple ignorance to describe an active, internal principle of moral and spiritual blindness that rejects divine illumination (John 3:19-20). Understanding σκοτεινός enriches the reading of these passages by highlighting the contrast with 'light' (φῶς) and the call for a 'clear' or 'single' (ἁπλοῦς) eye wholly focused on God, which fills the body with light (Luke 11:36).

In the ancient world, light was a precious and limited resource after sunset. Physical darkness was often associated with danger, fear, and evil. Jesus uses this universal human experience of darkness as a powerful metaphor for spiritual lostness and moral corruption, a concept readily understood by his audience. The metaphor of the body's 'lamp' draws on common cultural understanding of the eye as the window that admits light to guide the whole person.

σκότος (skotos, G4655) — The noun for 'darkness,' the state itself, whereas σκοτεινός describes something as being full of that state. σκοτία (skotia, G4653) — Another noun for 'darkness,' often used interchangeably with σκότος, but σκοτεινός is the adjectival form.

Word Details

Scripture References