Yehezkiel 6:13

6:13 Then you will know that I am the Lord – when their dead lie among their idols around their altars, on every high hill and all the mountaintops, under every green tree and every leafy oak, ¹  the places where they have offered fragrant incense to all their idols.

Yehezkiel 34:8

34:8 As surely as I live, declares the sovereign Lord, my sheep have become prey and have become food for all the wild beasts. There was no shepherd, and my shepherds did not search for my flock, but fed themselves and did not feed my sheep,

[6:13]  ¹ sn By referring to every high hill…all the mountaintops…under every green tree and every leafy oak Ezekiel may be expanding on the phraseology of Deut 12:2 (see 1 Kgs 14:23; 2 Kgs 16:4; 17:10; Jer 2:20; 3:6, 13; 2 Chr 28:4).