Isaiah 40:4

Every valley shall be exalted, and every mountain and hill shall be made low; and the crooked places shall be made level, and the rough places smooth;

Isaiah 45:2

I will go before you, and make hills level. I will break in pieces the bronze gates, and cut the iron bars in two.

Ezekiel 21:26

So says the Lord Jehovah: Remove the diadem, and take off the crown. This shall not be as it was. Lift up the low one, and put down the high one.

Luke 3:5

Every valley shall be filled, and every mountain and hill shall be brought low, and the crooked shall be straight, and the rough ways shall be made smooth.

1 Samuel 2:8

He raises up the poor out of the dust; He lifts up the needy from the dunghill to set them among princes; yea, He causes them to inherit a throne of honor; for to Jehovah are the pillars of the earth; and He sets the habitable world on them.

Job 40:11-13

Pour forth the rage of your wrath; and behold everyone who is proud, and abase him.

Psalm 113:7-8

He raises up the poor out of the dust, and lifts the needy out of the dunghill,

Isaiah 2:12-15

For the day of Jehovah of Hosts shall be on every proud and lofty one, and on every lifted up one; and he shall be brought low,

Isaiah 42:11

Let the wilderness and its cities lift up their voice, the villages where Kedar dwells. Let the dwellers of the rock sing, let them shout from the mountain tops.

Isaiah 42:15-16

I will make waste mountains and hills, and dry up all their plants. And I will make the rivers coastlands, and I will dry up the pools.

Ezekiel 17:24

And all the trees of the field shall know that I Jehovah have brought down the high tree, have exalted the low tree, have dried up the green tree, and have made the dry tree to flourish. I Jehovah have spoken and acted.

Luke 1:52-53

He has put down rulers from their seats and exalted the lowly,

Luke 18:14

I tell you, this man went down to his house justified rather than the other. For everyone who exalts himself shall be abased, and he who humbles himself shall be exalted.

Proverbs 2:15

whose ways are crooked, and are devious in their paths.

Treasury of Scripture Knowledge

Summary

Every valley shall be exalted, and every mountain and hill shall be made low: and the crooked shall be made straight, and the rough places plain:

Every mountain

Bible References

Valley

Isaiah 42:11
Let the wilderness and its cities lift up their voice, the villages where Kedar dwells. Let the dwellers of the rock sing, let them shout from the mountain tops.
1 Samuel 2:8
He raises up the poor out of the dust; He lifts up the needy from the dunghill to set them among princes; yea, He causes them to inherit a throne of honor; for to Jehovah are the pillars of the earth; and He sets the habitable world on them.
Psalm 113:7
He raises up the poor out of the dust, and lifts the needy out of the dunghill,
Ezekiel 17:24
And all the trees of the field shall know that I Jehovah have brought down the high tree, have exalted the low tree, have dried up the green tree, and have made the dry tree to flourish. I Jehovah have spoken and acted.
Ezekiel 21:26
So says the Lord Jehovah: Remove the diadem, and take off the crown. This shall not be as it was. Lift up the low one, and put down the high one.
Luke 1:52
He has put down rulers from their seats and exalted the lowly,
Luke 3:5
Every valley shall be filled, and every mountain and hill shall be brought low, and the crooked shall be straight, and the rough ways shall be made smooth.
Luke 18:14
I tell you, this man went down to his house justified rather than the other. For everyone who exalts himself shall be abased, and he who humbles himself shall be exalted.

Every mountain

Isaiah 2:12
For the day of Jehovah of Hosts shall be on every proud and lofty one, and on every lifted up one; and he shall be brought low,
Job 40:11
Pour forth the rage of your wrath; and behold everyone who is proud, and abase him.

And the

Isaiah 42:16
And I will bring the blind by a way they knew not; I will lead them in paths they have not known; I will make darkness light before them, and crooked things straight. I will do these things to them, and not forsake them.
Isaiah 45:2
I will go before you, and make hills level. I will break in pieces the bronze gates, and cut the iron bars in two.
Proverbs 2:15
whose ways are crooked, and are devious in their paths.

General references

Isaiah 2:14
and on all the high mountains, and on all the lifted up hills;
Isaiah 19:23
In that day there shall be a highway out of Egypt to Assyria, and Assyria shall come into Egypt, and Egypt into Assyria, and Egypt shall serve with Assyria.
Isaiah 49:11
And I will make all My mountains a way, and My highways shall be set on high.
Mark 1:3
The voice of one crying in the wilderness, prepare the way of the Lord, make His paths straight."
Luke 1:16
And he shall turn many of the sons of Israel to the Lord their God.