'Life' in the Bible

without father, without mother, without genealogy, having neither beginning of days nor end of life, but resembling the Son of God--he remains a priest for all time.

who has become [a priest] not according to a law of physical requirement, but according to the power of an indestructible life.

Remember your leaders, who spoke the word of God to you; {considering the outcome of their way of life}, imitate their faith.