G1336–διηνεκής–diēnekēs

without father, without mother, without genealogy, having neither beginning of days nor end of life, but made like the Son of God), remains a priest continually.

διηνεκές. diēnekes “all time.”

For the law, having a shadow of the good to come, not the very image of the things, can never with the same sacrifices year by year, which they offer continually, make perfect those who draw near.

διηνεκὲς diēnekes “continuous”

but he, when he had offered one sacrifice for sins for ever, sat down on the right hand of God;

διηνεκὲς diēnekes “perpetuity”

For by one offering he has perfected forever those who are being sanctified.

διηνεκὲς diēnekes “all time”