I'm the school-bell, ding, dong, ding! Listen to the song I sing, When you hear me call to you, Hurry your work to do, Heed the message that I bring, Ding! Dong! Ding! Come, my children, ding, dong, ding! Never loiter when I ring, Strong and true your lives will be If you will attend to me, If you'll heed me when I ring, Ding! Dong! Ding! Thus I call you, ding, dong, ding! To and fro I gladly swing, Little friends I love you all, That is why I often call, That is why for you I ring, Ding! Dong! Ding!
https://primoaccordo.net/hymns/the-school-bell.htm