Well you know it's a sin to tell a lie Still you keep saying, "I love you" That might be true, I wish I knew But I'm giving fair warnin' to you Be sure it's true when you say, "I love you" It's a sin to tell a lie Millions of hearts have been broken Just because these words were spoken I love you (ooh-ooh), yes I do, I love you (ooh) If you break (ooh-ooh) my heart, I'll die (ooh-ooh-ooh) So be sure it's true (ooh-ooh) When you say (ooh-ooh), "I love you" It's a sin (it's a sin) to tell (to tell) a lie All the love that I give To you, dear, will live Not for a day, but forever So I pretend, if in the end I'm nothin' to you but a friend ♪ Ooh, I love you (ooh-ooh), yes I do, I love you If you break my heart (if you break my heart) I'll die (I will surely die) So be sure (so be sure) it's true When you say, "I love you" It's a sin (it's a sin) to tell (to tell) a lie My, oh, my, it's a sin to tell a lie