"Being fully persuaded that God had power to do what he had promised". Abraham was old (about 100 years old), his wife Sara was just as old and barren (she was no longer producing babies -according to the World's belief). But God promised Abraham he would be the father of many nations.
Even though Abraham had accepted the fact that his body was beyond child barren years, he did not loose his faith regarding the PROMISE of God; believing that God had power to do what He promised (way back when Abraham was called Abram Genesis 17:22) which was to make Abraham a father of many Nations.
It's ok to accept what is before you and to live in the "now", but never forget the promises of God which outweigh and outlast our thinking, understanding, world views, public policy, statistics, etc.
Whatever is before you that looks dim or frustrates you - recognize it, but don't own it! Your job is to keep the faith and remember God's word never comes back void.
Abraham was an old man and yet still produced a child with his wife Sara, both, according to the world's view were too old - but God said differently! And He shall say differently in your life as well.
~In Truth and Love