εὐσεβέω (eusebeō)

The verb eusebeō describes acting with deep reverence and dutiful regard toward those who deserve honor. It conveys a sense of piety that is not merely internal but expressed through concrete actions toward God, family, or civil authorities. In the New Testament, this word appears only twice, yet its usage highlights a specific kind of faithful conduct.

In Acts 17:23, Paul observes an altar inscribed "To the Unknown God," noting that the Athenians are already eusebeō—showing piety or reverence—though they do not yet know the true object of their worship. This suggests a natural human inclination toward the divine, even when misdirected. Conversely, in 1 Timothy 5:4, the term is applied to family duty, where believers are instructed to show piety toward their own relatives, particularly widows. Here, eusebeō links spiritual reverence with tangible care for kin.

Derived from eu ("good") and sebomai ("to revere"), the word emphasizes the quality of one’s attitude as much as the act itself. It bridges the gap between belief and behavior, portraying piety as a lived reality rather than a abstract concept. Translators often render it as "show piety" or "act reverently," capturing the active nature of the devotion described.