The Greek word próteros, represented by G4387, is a comparative term meaning prior or previous. Its specific scriptural definition is former. Despite its foundational meaning related to time and sequence, it is a rare word in the Bible, appearing only 1 time in 1 unique verse.
The single use of G4387 is found in Ephesians 4:22, where it is central to the concept of spiritual transformation. The verse commands believers to "put off concerning the former conversation the old man." Here, próteros is used to identify a past way of life or behavior that must be discarded. This former life is explicitly linked to the "old man," which is described as being "corrupt according to the deceitful lusts."
Several related words in its sole context illuminate the meaning of the "former" life:
- G659 apotíthēmi: This word, meaning "to put away," is the direct action believers are told to take toward their former behavior Ephesians 4:22.
- G391 anastrophḗ: Defined as "behavior," this is the specific thing being described as former. It refers not to a single action but to a complete manner of living Ephesians 4:22.
- G3820 palaiós: Meaning "antique, i.e. not recent, worn out," this term describes the "man" associated with the former life, reinforcing the idea of leaving behind something that is old and obsolete Ephesians 4:22.
The theological weight of G4387 is concentrated in its single appearance, where it establishes a crucial doctrine:
- Spiritual Transformation: The word creates a clear dividing line between a believer's past and their new identity. The call to abandon the former conversation is a call to a radical and definitive change Ephesians 4:22.
- The "Old Man": G4387 is essential for defining the "old man." It is his behavior that is labeled as former, a lifestyle characterized by corruption and "deceitful lusts" (G539, G1939).
- Sanctification: By identifying a prior way of life to be cast off, the term underscores the ongoing process of sanctification, where a believer must consciously reject sinful patterns of the past.
In summary, while G4387 is used only once, its role is pivotal. It is not merely a word for "previous" but a theological marker that signifies a complete break with a past self. In Ephesians 4:22, it provides the basis for understanding the Christian's separation from the "old man" and the corrupt behavior that defined that former existence, highlighting the theme of total life transformation.
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