In today's Old Testament reading we see the passage which is frequently cited against Christians. In Leviticus 24.20 we see the idea that punishment will be inflicted "an eye for an eye and a tooth for a tooth." This is often used by the unbelieving community as an evidence of God's being mean and vengeful. On the contrary, if we look at the context, these penalties are imposed on those who carelessly or intentionally cause harm. They are intended to protect people. They are to discourage people from causing harm to their neighbors.
May the Lord likewise remind us that we are to love and care for our neighbors, striving to keep them from harm. Harming our neighbor is just like harming ourselves.