1 Corinthians 8:12

And so, by sinning against the brethren and wounding their conscience when it is weak, you sin against Christ.

Matthew 25:45

Then He will answer them, ‘Truly I say to you, to the extent that you did not do it to one of the least of these, you did not do it to Me.’

Matthew 18:6

but whoever causes one of these little ones who believe in Me to stumble, it would be better for him to have a heavy millstone hung around his neck, and to be drowned in the depth of the sea.

Genesis 20:9

Then Abimelech called Abraham and said to him, “What have you done to us? And how have I sinned against you, that you have brought on me and on my kingdom a great sin? You have done to me things that ought not to be done.”

Genesis 42:22

Reuben answered them, saying, “Did I not tell you, ‘Do not sin against the boy’; and you would not listen? Now comes the reckoning for his blood.”

Exodus 16:8

Moses said, “This will happen when the Lord gives you meat to eat in the evening, and bread to the full in the morning; for the Lord hears your grumblings which you grumble against Him. And what are we? Your grumblings are not against us but against the Lord.”

Exodus 32:21

Then Moses said to Aaron, “What did this people do to you, that you have brought such great sin upon them?”

1 Samuel 2:25

If one man sins against another, God will mediate for him; but if a man sins against the Lord, who can intercede for him?” But they would not listen to the voice of their father, for the Lord desired to put them to death.

1 Samuel 19:4-5

Then Jonathan spoke well of David to Saul his father and said to him, “Do not let the king sin against his servant David, since he has not sinned against you, and since his deeds have been very beneficial to you.

1 Samuel 24:11

Now, my father, see! Indeed, see the edge of your robe in my hand! For in that I cut off the edge of your robe and did not kill you, know and perceive that there is no evil or rebellion in my hands, and I have not sinned against you, though you are lying in wait for my life to take it.

Matthew 12:49-50

And stretching out His hand toward His disciples, He said, “Behold My mother and My brothers!

Matthew 18:10

“See that you do not despise one of these little ones, for I say to you that their angels in heaven continually see the face of My Father who is in heaven.

Matthew 18:21

Then Peter came and said to Him, “Lord, how often shall my brother sin against me and I forgive him? Up to seven times?”

Matthew 25:40

The King will answer and say to them, ‘Truly I say to you, to the extent that you did it to one of these brothers of Mine, even the least of them, you did it to Me.’

Acts 9:4-5

and he fell to the ground and heard a voice saying to him, “Saul, Saul, why are you persecuting Me?”

1 Corinthians 12:12

For even as the body is one and yet has many members, and all the members of the body, though they are many, are one body, so also is Christ.

Treasury of Scripture Knowledge

Summary

But when ye sin so against the brethren, and wound their weak conscience, ye sin against Christ.

Bible References

When

Genesis 20:9
Then Abimelech called Abraham and said to him, “What have you done to us? And how have I sinned against you, that you have brought on me and on my kingdom a great sin? You have done to me things that ought not to be done.”
Genesis 42:22
Reuben answered them, saying, “Did I not tell you, ‘Do not sin against the boy’; and you would not listen? Now comes the reckoning for his blood.”
Exodus 32:21
Then Moses said to Aaron, “What did this people do to you, that you have brought such great sin upon them?”
1 Samuel 2:25
If one man sins against another, God will mediate for him; but if a man sins against the Lord, who can intercede for him?” But they would not listen to the voice of their father, for the Lord desired to put them to death.
1 Samuel 19:4
Then Jonathan spoke well of David to Saul his father and said to him, “Do not let the king sin against his servant David, since he has not sinned against you, and since his deeds have been very beneficial to you.
1 Samuel 24:11
Now, my father, see! Indeed, see the edge of your robe in my hand! For in that I cut off the edge of your robe and did not kill you, know and perceive that there is no evil or rebellion in my hands, and I have not sinned against you, though you are lying in wait for my life to take it.
Matthew 18:21
Then Peter came and said to Him, “Lord, how often shall my brother sin against me and I forgive him? Up to seven times?”

Ye sin against

1 Corinthians 12:12
For even as the body is one and yet has many members, and all the members of the body, though they are many, are one body, so also is Christ.
Exodus 16:8
Moses said, “This will happen when the Lord gives you meat to eat in the evening, and bread to the full in the morning; for the Lord hears your grumblings which you grumble against Him. And what are we? Your grumblings are not against us but against the Lord.”
Matthew 12:49
And stretching out His hand toward His disciples, He said, “Behold My mother and My brothers!
Matthew 18:10
“See that you do not despise one of these little ones, for I say to you that their angels in heaven continually see the face of My Father who is in heaven.
Matthew 25:40
The King will answer and say to them, ‘Truly I say to you, to the extent that you did it to one of these brothers of Mine, even the least of them, you did it to Me.’
Acts 9:4
and he fell to the ground and heard a voice saying to him, “Saul, Saul, why are you persecuting Me?”

General references

2 Corinthians 6:3
giving no cause for offense in anything, so that the ministry will not be discredited,
Galatians 2:18
For if I rebuild what I have once destroyed, I prove myself to be a transgressor.
Philippians 2:4
do not merely look out for your own personal interests, but also for the interests of others.