We're on a journey. It leads to a shake-out of removable things so that the unshakeable kingdom could remain (12:26–29). HW speaks of Men of old "seeing" the promises that were emerging as Jerusalem's demise drew near: an ancient city disappearing (not physically) so the promised, God-founded City could stand forth (spiritually). How exciting it was, to know that what Abraham yearned for his entire life was on the cusp of coming true when HW wrote this admonition. And, how faith-focusing. That first audience was on the verge of the "great tribulation" that would shake away the chaff; they needed this focus to stay the course. Conduct critical to success could be found in the heroes of yesterday.
As heros shine, they encourage. "You can do this," their actions and choices shout. In similar situations this is what unwavering trust in God looked like. We should extract both encouragement and templates for our responses from them.
Be sure to join our continuation of this highly practical series of discussions from Heb. 11.