It was by faith, when Abraham was put to the test, that he sacrificed Isaac, he was ready to sacrifice his only son, although he had received the promises
Because you have kept the word of my patient endurance, I will keep you safe through the hour of trial which is coming upon the whole world to test the dwellers on earth.
See, we call the stedfast happy; you have heard of the stedfastness of Job, and you have seen the end of the Lord with him, seen that the Lord is very compassionate and pitiful.
(These all died in faith without obtaining the promises; they only saw them far away and hailed them, owning they were 'strangers and exiles upon earth.'