συμμαρτυρέω symmartyréō

Meaning

to testify jointly, i.e. corroborate by (concurrent) evidence

In the King James Version: testify unto, (also) bear witness (with)

Derivation: from G4862 (σύν) and G3140 (μαρτυρέω);

Where it is used

• Romans 2:15 So they show that the work of the law is written on their hearts, their consciences also bearing witness, and their thoughts either accusing or defending them
• Romans 8:16 The Spirit Himself testifies with our spirit that we are God’s children.
• Romans 9:1 I speak the truth in Christ; I am not lying, as confirmed by my conscience in the Holy Spirit.