Mortal vs. 'Living' Priests
The verse draws a sharp contrast to show the superiority of Melchizedek's priesthood. 'Here,' under the Levitical system, priests who received tithes were mortal men who died, highlighting the temporary nature of their office. 'There,' in the scriptural account of Melchizedek, the priest is described as one who 'liveth,' signifying a more permanent and therefore greater priesthood.