1 Corinthians 11:27

So that whosoever eateth this bread, or drinketh of the cup of the Lord unworthily, shall be guilty of profaning the body and blood of the Lord.

1 Timothy 1:13

who before was a blasphemer, and a persecutor, and an oppressor. But I obtained mercy, because I did it ignorantly in unbelief: and the grace of our Lord superabounded,

Hebrews 10:26-29

For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;

Treasury of Scripture Knowledge

Summary

And if the whole congregation of Israel sin through ignorance, and the thing be hid from the eyes of the assembly, and they have done somewhat against any of the commandments of the LORD concerning things which should not be done, and are guilty;

Through ignorance

Bible References

Through ignorance

1 Timothy 1:13
who before was a blasphemer, and a persecutor, and an oppressor. But I obtained mercy, because I did it ignorantly in unbelief: and the grace of our Lord superabounded,
Hebrews 10:26
For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;