'Every High Hill' in the Bible

Then you will know [without any doubt] that I am the Lord, when their slain are among their idols around their altars, on every high hill, on all the tops of the mountains, under every leafy tree and under every oak with thick branches, the places where they offered sweet incense and a soothing aroma to all their idols.

For when I had brought them into the land which I swore to give to them, they saw every high hill and every dark and leafy tree [as a place for idol worship], and there they offered their sacrifices and there they presented their offering that provoked My anger; there also they made their sweet-smelling aroma and there poured out their drink offerings.

My flock wandered through all the mountains and on every high hill; My flock was scattered over all the face of the earth and no one searched or sought them.”’”