19, 20. (a) What song must be sung? (b) Who today are singing the song of praise to Jehovah?

¹⁹ Isaiah writes: “Sing to Jehovah a new song, his praise from the extremity of the earth, you men that are going down to the sea and to that which fills it, you islands and you inhabiting them.

Isaiah 42:10

²⁰ The inhabitants of cities, of villages in the wilderness, of islands, even of “Kedar,” or encampments in deserts​—people everywhere—​are urged to sing a song of praise to Jehovah. How exciting it is that in our day millions have responded to this prophetic appeal! They have embraced the truth of God’s Word and have made Jehovah their God. Jehovah’s people are singing this new song​—attributing glory to Jehovah—​in more than 230 lands. How thrilling it is to sing in this multicultural, multilingual, and multiracial chorus!