Jamieson, Fausset and Brown on Hebrews 13:19

19. the rather--Greek, "I the more abundantly beseech you."

to do this--to pray for me.

that I may be restored to you--(Phm 22). It is here first in the letter he mentions himself, in a way so unobtrusive, as not to prejudice his Hebrew readers against him, which would have been the result had he commenced this as his other Epistles, with authoritatively announcing his name and apostolic commission.