'Sing' in the Bible

"And you, sing a lament for the princes of Israel,

They'll sing this mourning song for you: "How lost you are, you inhabited city, that was built in the middle of the sea! How famous you were! How strong on the sea! She and her inhabitants inflicted terror to everyone who lived within her."

"You, son of man, sing a lament for Tyre.

The ships of Tarshish did sing of thee in thy market: and thou wast replenished, and made very glorious in the midst of the seas.

"Son of man, sing a lament for the king of Tyre, and say to him, 'This is what the sovereign Lord says: "'You were the sealer of perfection, full of wisdom, and perfect in beauty.

"Son of man, sing a lament for Pharaoh king of Egypt, and say to him: "'You were like a lion among the nations, but you are a monster in the seas; you thrash about in your streams, stir up the water with your feet, and muddy your streams.

As far as they are concerned, you sing romantic songs with a beautiful voice and play a musical instrument well. They'll listen to what you have to say, but they won't put it into practice!