Genesis 3:15 NIV
This verse is unique because it is said to the snake, and has a curse and a promise in it. As I have looked at many of these Christmas verses most of them, like this one, has a component of ruling and government.
The Garden was lost, Adam had followed Eve in eating the forbidden fruit. Paradise would be guarded and barred to them, but God the Eternal gave hope to mankind. A child would be born that would crush the snake and restore man’s fellowship. Don’t lose sight that it also predicts that the Child would be injured, which for us means HEALING.