John 15:22

If I had not come and spoken to them, they would have had no sin to answer for; but as it is, they have no excuse for their sin.

John 9:41

"If you had been blind," replied Jesus, "you would have had no sin to answer for; but, as it is, you say 'We can see,' and so your sin remains.

Romans 1:20

For ever since the creation of the universe God's invisible attributes-his everlasting power and divinity-are to be seen and studied in his works, so that men have no excuse;

Luke 12:46

That servant's master will come on a day when he does not expect him, and at an hour of which he is unaware, and will flog him severely and assign him his place among the untrustworthy.

John 3:18-21

He who believes in him escapes condemnation, while he who does not believe in him is already condemned, because he has not believed in the only Son of God.

John 12:48

He who rejects me, and disregards my teaching, has a judge already--the very Message which I have delivered will itself be his judge at the Last Day.

John 19:11

"You would have no power over me at all," answered Jesus, "if it had not been given you from above; and, therefore, the man who betrayed me to you is guilty of the greater sin."

Acts 17:30

True, God looked with indulgence on the days of men's ignorance, but now he is announcing to every one everywhere the need for repentance,

Romans 2:1

Therefore you have nothing to say in your own defense, whoever you are who set yourself up as a judge. In judging others you condemn yourself, for you who set yourself up as a judge do the very same things.

2 Corinthians 2:14-16

All thanks to God, who, through our union with the Christ, leads us in one continual triumph, and uses us to spread the sweet odor of the knowledge of him in every place.

Hebrews 6:4-8

For if those who were once for all brought into the Light, and learned to appreciate the gift from Heaven, and came to share in the Holy Spirit,

James 4:17

He, then, who knows what is right but fails to do it--that is sin in him.

1 Peter 2:16

Act as free men, yet not using your freedom as those do who make it a cloak for wickedness, 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 ever since the creation of the universe God's invisible attributes-his everlasting power and divinity-are to be seen and studied in his works, so that men have no excuse;
Romans 2:1
Therefore you have nothing to say in your own defense, whoever you are who set yourself up as a judge. In judging others you condemn yourself, for you who set yourself up as a judge do the very same things.
1 Peter 2:16
Act as free men, yet not using your freedom as those do who make it a cloak for wickedness, but as Servants of God.

General references

Luke 10:14
Yet the doom of Tyre and Sidon will be more bearable at the Judgment than yours.
John 16:9
As to Sin, for men do not believe in me;
James 4:17
He, then, who knows what is right but fails to do it--that is sin in him.