Verses with the word praising in the Old Testament (4 verses):

2 Chronicles 5:13
It came even to pass, as the trumpeters and singers were as one, to make one sound to be heard in praising and thanking the LORD; and when they lifted up their voice with the trumpets and cymbals and instruments of musick, and praised the LORD, saying, For he is good; for his mercy endureth for ever: that then the house was filled with a cloud, even the house of the LORD;

2 Chronicles 23:12
Now when Athaliah heard the noise of the people running and praising the king, she came to the people into the house of the LORD:

Ezra 3:11
And they sang together by course in praising and giving thanks unto the LORD; because he is good, for his mercy endureth for ever toward Israel. And all the people shouted with a great shout, when they praised the LORD, because the foundation of the house of the LORD was laid.

Psalms 84:4
Blessed are they that dwell in thy house: they will be still praising thee. Selah.