'Every High Hill' in the Bible

Then shall ye know that I am the LORD, when their slain men shall be among their idols round about their altars, upon every high hill, on all the tops of the mountains, and under every green tree, and under every thick oak, the place where they offered sweet savor to all their idols.

For when I had brought them into the land, for which I lifted up my hand to give it to them, then they saw every high hill, and all the thick trees, and they offered there their sacrifices, and there they presented the provocation of their offering: there also they made their sweet savor, and poured out there their drink-offerings.

My sheep wandered through all the mountains, and upon every high hill: yes, my flock was scattered upon all the face of the earth, and none did search or seek for them.