Hebrews 9:7

But into the second only the high priest goes, and he but once a year, and not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.

1 Timothy 1:13

Even though I was formerly a blasphemer and a persecutor and a violent aggressor, I was shown mercy because I acted ignorantly in unbelief;

Hebrews 5:2

He can deal gently with those who are ignorant and going astray, since he himself is beset with weakness.

James 3:10

From the same mouth come blessing and cursing. My brethren, this ought not to be so.

Treasury of Scripture Knowledge

Summary

Speak unto the children of Israel, saying, If a soul shall sin through ignorance against any of the commandments of the LORD concerning things which ought not to be done, and shall do against any of them:

Which ought

Bible References

Through

1 Timothy 1:13
Even though I was formerly a blasphemer and a persecutor and a violent aggressor, I was shown mercy because I acted ignorantly in unbelief;
Hebrews 5:2
He can deal gently with those who are ignorant and going astray, since he himself is beset with weakness.
Hebrews 9:7
But into the second only the high priest goes, and he but once a year, and not without taking blood, which he offers for himself and for the sins of the people committed in ignorance.

Which ought

James 3:10
From the same mouth come blessing and cursing. My brethren, this ought not to be so.