Isaiah 57:14

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

Isaiah 62:10

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

Isaiah 40:3

The voice of him that crieth in the wilderness, Prepare ye the way of the LORD, 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 over it; but it shall be for those: the way-faring men, though fools, shall not err therein.

Jeremiah 18:15

Because my people hath forgotten me, they have burned incense to vanity, and they have caused them to stumble in their ways from the ancient paths, to walk in paths, in a way not cast up;

Luke 3:5-6

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

Romans 14:13

Let us not therefore judge one another any more: but judge this rather, that no man put a stumbling-block, or an occasion to fall in his brother's way.

1 Corinthians 1:23

But we preach Christ crucified, to the Jews a stumbling-block, and to the Greeks foolishness;

1 Corinthians 8:9

But take heed lest by any means this liberty of yours should become a stumbling-block to them that are weak.

1 Corinthians 8:13

Wherefore, if food maketh my brother to fall into sin, I will eat no flesh while the world standeth, lest I make my brother to fall into sin.

1 Corinthians 10:32-33

Give no offense, neither to the Jews, nor to the Gentiles, nor to the church of God:

2 Corinthians 6:3

Giving no offense in any thing, that the ministry be not blamed:

Hebrews 12:13

And make straight paths for your feet, lest that which is lame be turned out of the way; but let it rather 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 over it; but it shall be for those: the way-faring men, though fools, shall not err therein.
Isaiah 40:3
The voice of him that crieth in the wilderness, Prepare ye the way of the LORD, make straight in the desert a highway for our God.
Isaiah 62:10
Go through, go through the gates; prepare ye the way of the people; cast up, cast up the highway; gather out the stones; lift up a standard for the people.
Luke 3:5
Every valley shall be filled, and every mountain and hill shall be brought low; and the crooked shall be made straight, and the rough ways shall be made smooth;

Take

Romans 14:13
Let us not therefore judge one another any more: but judge this rather, that no man put a stumbling-block, or an occasion to fall in his brother's way.
1 Corinthians 1:23
But we preach Christ crucified, to the Jews a stumbling-block, and to the Greeks foolishness;
1 Corinthians 8:9
But take heed lest by any means this liberty of yours should become a stumbling-block to them that are weak.
1 Corinthians 10:32
Give no offense, neither to the Jews, nor to the Gentiles, nor to the church of God:
2 Corinthians 6:3
Giving no offense in any thing, that the ministry be not blamed:
Hebrews 12:13
And make straight paths for your feet, lest that which is lame be turned out of the way; but let it rather be healed.

General references

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