G4828 συμμαρτυρέω συμμαρτυρέω (symmartyréō), Strong’s G4828: to testify jointly, i.e. corroborate by (concurrent) evidence KJV: testify unto, (also) bear witness (with). Occurs 3 times. Source: https://besorah.bible/word/G4828 — Besorah, the whole Bible in Hebrew, Greek and English. Texts and licences: https://besorah.bible/about/credits.html symmartyréō — to testify jointly, i.e. corroborate by (concurrent) evidence KJV: testify unto, (also) bear witness (with) Built from σύν sýn (https://besorah.bible/word/G4862) (with or together) + μαρτυρέω martyréō (https://besorah.bible/word/G3140) (to be a witness, i.e. testify) Occurs 3 times. Where it occurs - Romans 2:15 (https://besorah.bible/besorah/romans/2?v=15) — in that they show the work of the law written in their hearts, their conscience testifying with them, and their… - Romans 8:16 (https://besorah.bible/besorah/romans/8?v=16) — The Spirit himself testifies with our spirit that we are children of God; - Romans 9:1 (https://besorah.bible/besorah/romans/9?v=1) — I tell the truth in Messiah. I am not lying, my conscience testifying with me in the Holy Spirit