2 Kings 16:4

And he made offerings, burning them in the high places and on the hills and under every green tree.

Deuteronomy 12:2

You are to give up to the curse all those places where the nations, whom you are driving out, gave worship to their gods, on the high mountains and the hills and under every green tree:

1 Kings 14:23

For they made high places and upright stones and wood pillars on every high hill and under every green tree;

2 Kings 14:4

But still the high places were not taken away; the people went on making offerings and burning them in the high places.

Isaiah 57:5-7

You who are burning with evil desire among the oaks, under every green tree; putting children to death in the valleys, under the cracks of the rocks?

Isaiah 65:4

Who are seated in the resting-places of the dead, and by night are in the secret places; who take pig's flesh for food, and have the liquid of disgusting things in their vessels.

Isaiah 66:17

As for those who keep themselves separate, and make themselves clean in the gardens, going after one in the middle, taking pig's flesh for food, and other disgusting things, such as the mouse: their works and their thoughts will come to an end together, says the Lord.

Jeremiah 17:2

Their altars and their wood pillars under every branching tree, on the high hills and the mountains in the field.

Ezekiel 20:28-29

For when I had taken them into the land which I made an oath to give to them, then they saw every high hill and every branching tree and made their offerings there, moving me to wrath by their offerings; and there the sweet smell of their offerings went up and their drink offerings were drained out.

Treasury of Scripture Knowledge

Summary

And he sacrificed and burnt incense in the high places, and on the hills, and under every green tree.

General references

Bible References

On the hills

Deuteronomy 12:2
You are to give up to the curse all those places where the nations, whom you are driving out, gave worship to their gods, on the high mountains and the hills and under every green tree:
1 Kings 14:23
For they made high places and upright stones and wood pillars on every high hill and under every green tree;
Isaiah 57:5
You who are burning with evil desire among the oaks, under every green tree; putting children to death in the valleys, under the cracks of the rocks?
Isaiah 65:4
Who are seated in the resting-places of the dead, and by night are in the secret places; who take pig's flesh for food, and have the liquid of disgusting things in their vessels.
Isaiah 66:17
As for those who keep themselves separate, and make themselves clean in the gardens, going after one in the middle, taking pig's flesh for food, and other disgusting things, such as the mouse: their works and their thoughts will come to an end together, says the Lord.
Jeremiah 17:2
Their altars and their wood pillars under every branching tree, on the high hills and the mountains in the field.
Ezekiel 20:28
For when I had taken them into the land which I made an oath to give to them, then they saw every high hill and every branching tree and made their offerings there, moving me to wrath by their offerings; and there the sweet smell of their offerings went up and their drink offerings were drained out.

General references

2 Chronicles 28:4
And he made offerings and had perfumes burned in the high places and on the hills and under every green tree.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain