Name a few metaphor examples using like or as in Letter from Birmingham Jail by Martin Luther King, Jr.

1. "When you see the vast majority of your twenty million Negro brothers smothering in an air-tight cage of poverty in the midst of affluent society ... "

2. " ... so I am compelled to carry the gospel of freedom beyond my own home. Like Paul, I must constantly respond to the Macedonian call for aid"

3. "We bring it out in the open, where it can be seen and dealt with. Like a boil that can never be cured so long as it is covered up but must be opened with all its ugliness"