For me, faith being the outstanding "requirement" for salvation is awe inspiring. It's not works, not how much money I tithe on Sundays, it's not even the amount and depth of my past sins that hinder me from entering His kingdom! As long as I believe in God and trust His promises I can be assured of salvation. To me, true faith brings about a series of events: because I have faith I want to learn more about my Savior, because I have faith I believe in his word where it says "If I repent my sins will be forgiven," -- all I have to do is believe. Some days my belief is stronger than others and other days I feel like I'll never make it into the kingdom but, as always, I am justified -- made right, reunited with, in relationship again with God solely because I believe. WOW.
For Abaham what has always stood out to me is that he was willing to place his son on an alter for sacrifice. As a Mother, I can't imagine the amount of faith that it took! Would I be able to do that? Abraham's faith brought about repeated justification when he sinned and his sins went deep. If God forgave and justified Abraham then, there's a chance for me.