Matthew 18:6

But whoever shall cause one of these little ones who believe in me, to sin, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.

Mark 9:42

And whoever shall cause one of these little ones that believe in me, to fall into sin, it is better for him that a millstone were hanged about his neck, and he were cast into the sea.

Psalm 105:15

Saying, Touch not my anointed, and do my prophets no harm.

Zechariah 2:8

For thus saith the LORD of hosts; After the glory hath he sent me to the nations which wasted you: for he that toucheth you, toucheth the apple of his eye.

Zechariah 13:7

Awake, O sword, against my shepherd, and against the man that is my fellow, saith the LORD of hosts: smite the shepherd, and the sheep shall be scattered: and I will turn my hand upon the little ones.

Matthew 18:10

Take heed that ye despise not one of these little ones: for I say to you, that in heaven their angels do always behold the face of my Father who is in heaven.

Matthew 18:14

Even so it is not the will of your Father who is in heaven, that one of these little ones should perish.

Luke 17:1-2

Then he said to the disciples, It is impossible but that causes of sin will come: but woe to him by whom they come!

Acts 9:5

And he said, Who art thou, Lord? And the Lord said, I am Jesus whom thou persecutest. It is hard for thee to kick against the goads.

Romans 14:13-15

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.

Romans 14:21

It is good neither to eat flesh, nor to drink wine, nor any thing by which thy brother stumbleth, or is offended, or is made weak.

Romans 15:1-3

We then that are strong ought to bear the infirmities of the weak, and not to please ourselves.

1 Corinthians 8:9-13

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

1 Corinthians 10:32-33

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

2 Thessalonians 1:6-9

Seeing it is a righteous thing with God to recompense tribulation to them that trouble you;

Treasury of Scripture Knowledge

Summary

But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.

General references

Bible References

Little

Matthew 18:10
Take heed that ye despise not one of these little ones: for I say to you, that in heaven their angels do always behold the face of my Father who is in heaven.
Zechariah 13:7
Awake, O sword, against my shepherd, and against the man that is my fellow, saith the LORD of hosts: smite the shepherd, and the sheep shall be scattered: and I will turn my hand upon the little ones.
Luke 17:2
It were better for him that a millstone were hanged about his neck, and he cast into the sea, than that he should cause one of these little ones to fall into sin.

General references

2 Corinthians 6:3
Giving no offense in any thing, that the ministry be not blamed:
Philippians 2:4
Look not every man on his own things, but every man also on the things of others.