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

Psalms 122:5
For there are set thrones of judgment, the thrones of the house of David.

Isaiah 14:9
Hell from beneath is moved for thee to meet thee at thy coming: it stirreth up the dead for thee, even all the chief ones of the earth; it hath raised up from their thrones all the kings of the nations.

Ezekiel 26:16
Then all the princes of the sea shall come down from their thrones, and lay away their robes, and put off their broidered garments: they shall clothe themselves with trembling; they shall sit upon the ground, and shall tremble at every moment, and be astonished at thee.

Daniel 7:9
I beheld till the thrones were cast down, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire.