Committed Cause.

Jeremiah 11:1-10-- persistance in disobedience before the Lord from the house of Israel and Judah. Their focus was on the promises and privileges of God, however, they were lacking in evidence of responsibility and duty as followers of God.

"But you, Lord Almighty, who judge righteously
  and test the heart and mind,
  let me see your vengeance on them,
  for to you I have committed my cause."
                                             -Jeremiah 11:20

Earlier on in Jeremiah 11, the people of Judah and Jerusalem are criticized for choosing to form God into their own liking. As a son/daughter of the King we have many privileges here on earth and eternally in the Kingdom. But all privileges come with responsibility, a duty. Unfortunately, the house of Israel and the house of Judah broke the promise between God and their forefathers. So God says:

"...although they cry out to me, I will not listen to them." (Jeremiah 11:11)

It doesn't make sense to only take in and dwell on the blessings, promises and privileges of God and completely ignore the duty of a true disciple behind each blessing, promise and privilege.
We can't expect God to lavish us with blessings if we don't keep up our part of being responsible in the privileges of knowing and experiencing God through His gifts. Even the simplest gift-- the gift of life. We live because He first loved us (1 John 4:19). We owe our whole life to Jesus because of His love.

I want to live my life completely focused and centered around Christ. So that even when people accuse me, hurt me, come against me (going back to Jeremiah 11:20), I can fully depend and commit the cause to Him. And that is my duty in every God-given privilege as a daughter of the King. To give all my worries to Him because He cares for me (1 Peter 5:7, NLV).

Whatever God is promising you or blessing you with-- it's for His glory. Our commission (duty!) is to let Him be known in every area of our lives!