Reciprocal Favors

"Then he began to reproach the towns in which most of his miracles has been worked, because they refused to repent." (Matthew 11: 20)

I have two thoughts on the above scriptures:

1. I am like a town where Jesus worked many miracles. When I count my blessings, I am amazed. Yet, I am struggling to show reciprocal favors to the Lord.
   
2. When I make investments in business and the returns are negligible, I fume and I am very disappointed. Can I compare business investment to the investment of Jesus in His ministry with sometimes disappointing results?