“Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession.”
King James Version (KJV)
4:14 Having therefore a great high priest - Great indeed, being the eternal Son of God, that is passed through the heavens - As the Jewish high priest passed through the veil into the holy of holies, carrying with him the blood of the sacrifices, on the yearly day of atonement; so our great high priest went once for all through the visible heavens, with the virtue of his own blood, into the immediate presence God.
Heb 4:14 Seeing then that we have a great high priest. As has been shown (Heb 2:17 3:1). That is passed into the heavens. Our high priest now makes intercession in the true Holy of Holies.