Agency is the ability to choose an action, whereas Freedom is the capability to DO an action. What’s the difference? Here’s an example.
You have the agency or ability to make the choice to go to New York, and can make that choice even if you don’t have a car or other form of transportation. You have made the choice, despite the absence of the ability to act on that choice. It is the access to transportation that will provide you with the Freedom, or capability, to actually go to New York.
Liberty is opposite of Captivity. Liberty is often confused as having the same meaning as Freedom, yet there is a difference. Liberty comes from choosing and doing the right actions, those which are just before God. It’s really impossible to separate Liberty from Obedience to the Laws of God.
Real Liberty only comes from obeying a commandment or law to reach the destination you want. Bondage, or Captivity, is choosing a path and being bound to the outcome, whereas Liberty is choosing your destination or outcome and being bound to the path required to achieve such an outcome.
The Key to understanding and experiencing Liberty lies in choosing the outcome we want versus receiving the outcome our path dictates.
via What is the difference between Agency, Freedom and Liberty? | Latter-day Conservative.