1 John 2:21

I have not written to you because you do not know the truth, but because you know it, and because no lie is of the truth.

2 Peter 1:12

Therefore I will be ready always to remind you of these things, though you know them, and are established in the present truth.

Proverbs 1:5

that the wise man may hear, and increase in learning; that the man of understanding may attain to sound counsel:

Proverbs 9:8-9

Do not reprove a scoffer, lest he hate you. Reprove a wise man, and he will love you.

Romans 15:14-15

I myself am also persuaded about you, my brothers, that you yourselves are full of goodness, filled with all knowledge, able also to admonish others.

Jude 1:5

Now I desire to remind you, though you already know this, that Jesus, having saved a people out of the land of Egypt, afterward destroyed those who did not believe.

Treasury of Scripture Knowledge

Summary

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.

General references

Bible References

Because ye know not

Proverbs 1:5
that the wise man may hear, and increase in learning; that the man of understanding may attain to sound counsel:
Proverbs 9:8
Do not reprove a scoffer, lest he hate you. Reprove a wise man, and he will love you.
Romans 15:14
I myself am also persuaded about you, my brothers, that you yourselves are full of goodness, filled with all knowledge, able also to admonish others.
2 Peter 1:12
Therefore I will be ready always to remind you of these things, though you know them, and are established in the present truth.

General references

Proverbs 9:9
Instruct a wise man, and he will be still wiser. Teach a righteous man, and he will increase in learning.
Isaiah 32:3
The eyes of those who see will not be dim, and the ears of those who hear will listen.
John 10:5
They will by no means follow a stranger, but will flee from him; for they do not know the voice of strangers."