Do they know that jesus was born on this day to save our lives? do they know that he carried the sins of the world upon his heart, so that you and I could live, and we'd have an alternative in this life. Do they know what this day means do they know where we've been and how it should be? Tell me do they know, Do they know we should love one another, do they know? the world would be alright only if they know. Do they know that showing love to each other is how we all should live? Do they know that the reason for giving is more than what you give? And to you and yours this day on a very special holiday, give love. Do they know what this day means do they know where we've been and how it should be? Tell me do they know, Do they know we should love one another, do they know? the world would be alright only if they know. and lord if they know, keep them in your care, keep them inside your heart. and help them spread the word. Do they know what this day means do they know where we've been and how it should be. Tell me, do they know? Do they know we should love one another, do they know? The world would be alright only if they know.