'King's' in the Bible

This is what the Lord God let me see: and I saw that, when the growth of the late grass was starting, he made locusts; it was the late growth after the king's cutting was done.

But be a prophet no longer at Beth-el: for it is the holy place of the king, and the king's house.

And the songs of the king's house will be cries of pain in that day, says the Lord God: great will be the number of the dead bodies, and everywhere they will put them out without a word.