John 15:22

If I did not come and speak to them, they had not sin: now they have no excuse for their sin.

John 9:41

Jesus said to them, If you were blind you would not have sin: but now you say that, We see: your sin remaineth.

Romans 1:20

for the invisible things of Him from the creation of the world are seen, being known by the things which are made, even His eternal power and divinity; so that they are without excuse:

Luke 12:46

the lord of that servant will come in a day in which he does not expect, and in an hour in which he does not know, and will cut him off, and will appoint his part with the unbelievers.

John 3:18-21

He that believeth on Him is not condemned; but he that believeth not, has already been condemned, because he has not believed on the name of the only begotten Son of God.

John 12:48

He that rejects me, and receiving not my words, has one judging him: the word which I have spoken, it will judge him in the last day.

John 19:11

Jesus responded, Thou hast no power against me, unless it was given to thee from above: on this account the one having betrayed me to thee has the greater sin.

Acts 17:30

Then indeed God winking at the times of ignorance, now commands all men everywhere to repent:

Romans 2:1

Therefore thou art inexcusable, O man, every one judging. For in whatsoever thou art judging another, thou art condemning thyself; for thou judging art doing the same things.

2 Corinthians 2:14-16

But thanks be unto God, who always causes us to triumph in Christ, and manifesting the fragrance of his knowledge through us in every place:

Hebrews 6:4-8

For it is impossible that those having been once enlightened, and tasted the heavenly gift, and have been made partakers of the Holy Ghost,

James 4:17

Therefore to him that knows to do good, and does it not, to him it is sin.

1 Peter 2:16

as free, and not as having the freedom as a cover of evil, but as servants of God.

Treasury of Scripture Knowledge

Summary

If I had not come and spoken unto them, they had not had sin: but now they have no cloke for their sin.

General references

Bible References

Cloke

Romans 1:20
for the invisible things of Him from the creation of the world are seen, being known by the things which are made, even His eternal power and divinity; so that they are without excuse:
Romans 2:1
Therefore thou art inexcusable, O man, every one judging. For in whatsoever thou art judging another, thou art condemning thyself; for thou judging art doing the same things.
1 Peter 2:16
as free, and not as having the freedom as a cover of evil, but as servants of God.

General references

Luke 10:14
Moreover it shall be more tolerable for Tyre and Sidon in the judgment than for you.
John 16:9
Concerning sin indeed, because they do not believe on me; and concerning righteousness;
James 4:17
Therefore to him that knows to do good, and does it not, to him it is sin.