1 John 2:21

I did not write to you because ye know not the truth; but because ye know it, and because no falsehood is of the truth.

2 Peter 1:12

Wherefore, I shall be always ready to remind you of these things, though ye know them, and have become confirmed in the present truth.

Romans 15:14-15

And I myself also have become persuaded of you, my brethren, that ye yourselves also are full of goodness, filled with all knowledge, able also to admonish one another.

Jude 1:5

Now I wish to put you in remembrance, though ye know all things once for all, that the Lord, having saved the people out of the land of Egypt, afterward destroyed those who believed not.

Treasury of Scripture Knowledge

Summary

1 John 2:21

I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.

Because ye know not

Romans 15:14

2 Peter 1:12

General references

John 10:5

Bible References

Because ye know not

And I myself also have become persuaded of you, my brethren, that ye yourselves also are full of goodness, filled with all knowledge, able also to admonish one another.

Wherefore, I shall be always ready to remind you of these things, though ye know them, and have become confirmed in the present truth.

General references

But a stranger they will in no wise follow, but will flee from him; because they know not the voice of strangers."