Matthew 18:6

but whoever ensnares one of these little ones that believe in me, it were better for him that a millstone were hung about his neck, and that he were drowned in the depth of the sea.

Mark 9:42

And whoever will ensnare one of these little ones that believe on me, it would be better for him if a millstone were hung about his neck, and he were thrown into the sea.

Matthew 18:10

Take heed that you despise not one of these little ones: for I say to you, That their angels in heaven 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 be lost.

Luke 17:1-2

Then he said to his disciples: It is impossible that causes of offense should not come; but alas for him by whom they come!

Acts 9:5

He answered: "Who art thou, Lord? And the Lord said: I am Jesus, whom you persecute.

Romans 14:13-15

Let us, therefore, no longer judge one another: but rather decide to put no stumbling-block or snare in your brother's way.

Romans 14:21

It is good neither to eat flesh, nor to drink wine, nor to do any thing by which your brother stumbles, or is ensnared, or is made weak.

Romans 15:1-3

But we that are strong ought to bear the infirmities of those who are not strong, and not to please ourselves.

1 Corinthians 8:9-13

But take heed, lest, by any means, this right of yours become a stumbling-block to those who are weak.

1 Corinthians 10:32-33

Give no occasion for stumbling, either to the Jews, or to the Greeks, or to the church of God;

2 Thessalonians 1:6-9

since, indeed, it is a righteous thing with God, to repay affliction to those who afflict 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 you despise not one of these little ones: for I say to you, That their angels in heaven do always behold the face of my Father who is in heaven.
Luke 17:2
It would be better for him that a millstone were hung about his neck, and he were thrown into the sea, than that he should cause one of these little ones to sin.

General references

2 Corinthians 6:3
for we put no stumbling-block in any man's way, in order that this ministry may not be blamed;
Philippians 2:4
Consider not each one his own gifts, but each one also the gifts of others.