Matthew 13:11-12

He responding said to them, Because it has been given unto you to know the mysteries of the kingdom of the heavens, but to them it has not been given.

John 6:45

It is written in the prophets, They shall all be taught of God; every one hearing and learning from the Father, comes to me.

John 7:17

if any one may will to do His will, he shall know concerning the teaching, whether it is of God, or I speak for myself.

1 Corinthians 2:14-15

But the intellectual man receives not the things of the Spirit of God; for they are foolishness unto him; and he is not able to know them, because they are spiritually discerned.

James 1:5

But if any of you lack wisdom, let him ask God, who gives to all cheerfully and upbraids none; and it will be given unto him.

Treasury of Scripture Knowledge

Summary

They are all plain to him that understandeth, and right to them that find knowledge.

Bible References

General references

Matthew 13:11
He responding said to them, Because it has been given unto you to know the mysteries of the kingdom of the heavens, but to them it has not been given.
John 6:45
It is written in the prophets, They shall all be taught of God; every one hearing and learning from the Father, comes to me.
John 7:17
if any one may will to do His will, he shall know concerning the teaching, whether it is of God, or I speak for myself.
1 Corinthians 2:14
But the intellectual man receives not the things of the Spirit of God; for they are foolishness unto him; and he is not able to know them, because they are spiritually discerned.
James 1:5
But if any of you lack wisdom, let him ask God, who gives to all cheerfully and upbraids none; and it will be given unto him.