Verses with the word playing in the Old Testament (7 verses):

Leviticus 21:9
And the daughter of any priest, if she profane herself by playing the whore, she profaneth her father: she shall be burnt with fire.

1 Samuel 16:18
Then answered one of the servants, and said, Behold, I have seen a son of Jesse the Bethlehemite, that is cunning in playing, and a mighty valiant man, and a man of war, and prudent in matters, and a comely person, and the LORD is with him.

1 Chronicles 15:29
And it came to pass, as the ark of the covenant of the LORD came to the city of David, that Michal, the daughter of Saul looking out at a window saw king David dancing and playing: and she despised him in her heart.

Psalms 68:25
The singers went before, the players on instruments followed after; among them were the damsels playing with timbrels.

Jeremiah 2:20
For of old time I have broken thy yoke, and burst thy bands; and thou saidst, I will not transgress; when upon every high hill and under every green tree thou wanderest, playing the harlot.

Ezekiel 16:41
And they shall burn thine houses with fire, and execute judgments upon thee in the sight of many women: and I will cause thee to cease from playing the harlot, and thou also shalt give no hire any more.

Zechariah 8:5
And the streets of the city shall be full of boys and girls playing in the streets thereof.