The song 'Behold the Pale Horse' by Killswitch Engage questions how we will explain to future generations the destruction of our planet. It highlights the urgency of the situation and the need for action before it's too late. The lyrics also touch on the consequences of our inaction and the inevitability of judgment. The title and chorus refer to the biblical Four Horsemen of the Apocalypse, with the pale horse symbolizing death and destruction. The song serves as a call to action to prevent the funeral of the Earth.