forerunner

Concise Bible Dictionary:

Used symbolically of Christ, who has entered within the veil as the forerunner of the saints (Heb. 6:2020Whither the forerunner is for us entered, even Jesus, made an high priest for ever after the order of Melchisedec. (Hebrews 6:20)). It is an allusion to those in high position in the East, who have men to run before them to clear the way, and to announce who is coming. In the case of Christ the reverse is the fact: the Lord has run before His servants; but the term necessarily implies that there are others who are following after.

Strong’s Dictionary of Greek Words:

Number:
4274 (find all occurrences in KJV Bible)
Greek:
πρόδρομος
Transliteration:
prodromos
Phonic:
prod’-rom-os
Meaning:
from the alternate of 4390; a runner ahead, i.e. scout (figuratively, precursor)
KJV Usage:
forerunner