συμμαρτυρέω

Core Meaning & Semantic Range

The Greek word symmartyréō, represented by G4828, means to testify jointly, i.e. corroborate by (concurrent) evidence. Appearing 5 times across 4 unique verses in the Bible, this term is used to describe a concurrent testimony where two or more witnesses confirm a single truth.

Biblical Occurrences & Contextual Analysis

In its biblical usage, G4828 describes testimony from both divine and human sources. In Romans, it is used to describe the inner working of the conscience G4893, which bears witness alongside a person's thoughts to the law written on their hearts Romans 2:15. The term is also central to the assurance of salvation, where the Spirit G4151 itself beareth witness with our spirit that we are the children of God Romans 8:16. Paul uses the word twice in one verse to emphasize his sincerity, stating that his conscience bears him witness in the Holy Ghost Romans 9:1. Finally, it is used in a solemn warning, to testify to everyone who hears the words of prophecy in the book of Revelation Revelation 22:18.

Related Words & Concepts

Several related words clarify the context in which a joint testimony occurs:

• G4151 pneûma (a spirit): The divine witness that testifies alongside the believer's own spirit. In Romans 8:16, the Spirit itself beareth witness with our spirit, confirming a believer's status as a child of God.
• G4893 syneídēsis (conscience): The internal, moral faculty that provides a corroborating witness. The conscience is said to be bearing witness to the law of God that is written in the hearts of men Romans 2:15.
• G225 alḗtheia (truth): The ultimate subject of any testimony. Paul invokes his co-witnessing conscience when he declares he is speaking the truth in Christ and not lying Romans 9:1.

Theological Significance

The theological weight of G4828 is seen in its function of providing confirmation and assurance.

• The Internal Witness of the Law: The word demonstrates that all people have an internal moral compass, as their conscience bears witness to the work G2041 of the law G3551 written in their hearts G2588, with their thoughts either accusing G2723 or excusing G626 them Romans 2:15.
• Assurance of Sonship: The most direct application is the confirmation of a believer's relationship with God. It is not a solitary hope but a joint testimony, where the Holy Spirit G4151 beareth witness with our spirit that we are the children G5043 of God G2316 Romans 8:16.
• Apostolic Sincerity: Paul uses the concept to establish the integrity of his message, stating he speaks the truth G225 and does not lie G5574, because his conscience G4893 is bearing witness with the Holy G40 Ghost G4151 Romans 9:1.

Summary

In summary, G4828 is a precise term that moves beyond a single testimony to describe corroborating evidence. It illustrates a foundational principle of confirmation, whether through the internal moral witness of the conscience, the spiritual assurance given by the Holy Spirit, or the authoritative declaration of an apostle. The word connects the divine and human realms, showing how God provides a concurrent witness to affirm truth, law, and relationship.