Strong’s Greek
G4303 — promarturomai
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
προμαρτύρομαι
promarturomai — pronounced prom-ar-too'-rom-ahee
from 4253 and 3143; to be a witness in advance i.e. predict:--testify beforehand. see GREEK for 4253 see GREEK for 3143
1 occurrence in the KJV.
1 Peter 1:11
Searching what, or what manner of time the Spirit of Christ which was in them did signify, when it testified beforehand the sufferings of Christ, and the glory that should follow.