'Bowed Their Heads' in the Bible

And Hezekiah the king and the rulers commanded the Levites to sing praise to Jehovah with the words of David and of Asaph the seer. And they sang praises with gladness, and they bowed their heads and worshiped.

And Ezra blessed Jehovah, the great God. And all the people answered, Amen, amen, lifting up their hands. And they bowed their heads and worshiped Jehovah with their faces to the ground.