In Luke 1, Mary sings for joy at being seen and chosen by her mighty God. Up until this point, she was someone who had lived in expectation of the coming Messiah. We see in this passage that she was aware of how God was using her to fulfill his promise, but she was also likely aware that this would be a difficult and disruptive call on her life. While we will probably never experience it to the degree that Mary did, we can often rejoice when we see God at work without truly understanding how much perseverance and difficulty might be involved in the process.
