testify beforehand

Strong’s Dictionary of Greek Words:

Number:
4303 (find all occurrences in KJV Bible)
Greek:
προμαρτύρομαι
Transliteration:
promarturomai
Phonic:
prom-ar-too’-rom-ahee
Meaning:
from 4253 and 3143; to be a witness in advance i.e. predict
KJV Usage:
testify beforehand