Isaiah 57:14

And it shall be said, Cast up, cast up, prepare the way, take up the stumbling-blocks out of the way of my people.

Isaiah 62:10

Go through, go through the gates; prepare the way of the people; cast up, cast up the highway; gather out the stones; lift up a banner for the peoples.

Isaiah 40:3

The voice of one crying in the wilderness: Prepare ye the way of Jehovah, make straight in the desert a highway for our God!

Isaiah 35:8

And a highway shall be there and a way, and it shall be called, The way of holiness: the unclean shall not pass through it; but it shall be for these. Those that go this way even fools, shall not err therein.

Jeremiah 18:15

For my people hath forgotten me: they burn incense to vanity; and they have caused them to stumble in their ways, the ancient paths, to walk in by-paths of a way not cast up;

Luke 3:5-6

Every gorge shall be filled up, and every mountain and hill shall be brought low, and the crooked places shall become a straight path, and the rough places smooth ways,

Romans 14:13

Let us no longer therefore judge one another; but judge ye this rather, not to put a stumbling-block or a fall-trap before his brother.

1 Corinthians 1:23

but we preach Christ crucified, to Jews an offence, and to nations foolishness;

1 Corinthians 8:9

But see lest anywise this your right to eat itself be a stumbling-block to the weak.

1 Corinthians 8:13

Wherefore if meat be a fall-trap to my brother, I will eat no flesh for ever, that I may not be a fall-trap to my brother.

1 Corinthians 10:32-33

Give no occasion to stumbling, whether to Jews, or Greeks, or the assembly of God.

2 Corinthians 6:3

giving no manner of offence in anything, that the ministry be not blamed;

Hebrews 12:13

and make straight paths for your feet, that that which is lame be not turned aside; but that rather it may be healed.

Treasury of Scripture Knowledge

Summary

And shall say, Cast ye up, cast ye up, prepare the way, take up the stumblingblock out of the way of my people.

Bible References

Cast

Isaiah 35:8
And a highway shall be there and a way, and it shall be called, The way of holiness: the unclean shall not pass through it; but it shall be for these. Those that go this way even fools, shall not err therein.
Isaiah 40:3
The voice of one crying in the wilderness: Prepare ye the way of Jehovah, make straight in the desert a highway for our God!
Isaiah 62:10
Go through, go through the gates; prepare the way of the people; cast up, cast up the highway; gather out the stones; lift up a banner for the peoples.
Luke 3:5
Every gorge shall be filled up, and every mountain and hill shall be brought low, and the crooked places shall become a straight path, and the rough places smooth ways,

Take

Romans 14:13
Let us no longer therefore judge one another; but judge ye this rather, not to put a stumbling-block or a fall-trap before his brother.
1 Corinthians 1:23
but we preach Christ crucified, to Jews an offence, and to nations foolishness;
1 Corinthians 8:9
But see lest anywise this your right to eat itself be a stumbling-block to the weak.
1 Corinthians 10:32
Give no occasion to stumbling, whether to Jews, or Greeks, or the assembly of God.
2 Corinthians 6:3
giving no manner of offence in anything, that the ministry be not blamed;
Hebrews 12:13
and make straight paths for your feet, that that which is lame be not turned aside; but that rather it may be healed.

General references

Deuteronomy 19:3
Thou shalt prepare thee the way, and divide the territory of thy land, which Jehovah thy God giveth thee to inherit, into three parts, so that every slayer may flee thither.
Isaiah 35:3
Strengthen the weak hands and confirm the tottering knees.
Isaiah 49:11
And I will make all my mountains a way, and my highways shall be raised up.