Romans 4-5

In Genesis 15:6 it is recorded that Abraham believed that God would keep his promises. Paul explains in this passage that God gave Abraham a gift just because he conformed his life's expectations around God's promises. He didn't look at just one promise, but all of them. As he faced each test of his faith he trusted God. God tested Abraham's faith in many ways. Each one more difficult and challenging than the other.  But as he faced each challenge, when he stared disappointment and his own sinfulness in the face he always went back to God's promises and stood firm. That is his legacy to us.
It took me about 8 minutes to read this passage.
Stuart