-- unto you is given to know the mystery of the kingdom of God in parables --- Mark 4:11
-- understand that foods entering a man do not defile him, but evil thoughts do --- Mark 7:18-23
-- having made known to us the mystery of his will --- Ephesians 1:9
-- by revelation he made known to me the mystery --- Ephesians 3:3
-- to make known the mystery of the gospel --- Ephesians 6:19
-- to whom God would make known the riches of the glory which is Christ in you --- Colossians 1:27

Mark 4:10-13 KJV
[10] And when he was alone, they that were about him with the twelve asked of him the parable. [11] And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, all these things are done in parables: [12] That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them. [13] And he said unto them, Know ye not this parable? and how then will ye know all parables?

Mark 7:14-23 KJV
[14] And when he had called all the people unto him, he said unto them, Hearken unto me every one of you, and understand: [15] There is nothing from without a man, that entering into him can defile him: but the things which come out of him, those are they that defile the man. [16] If any man have ears to hear, let him hear. [17] And when he was entered into the house from the people, his disciples asked him concerning the parable. [18] And he saith unto them, Are ye so without understanding also? Do ye not perceive, that whatsoever thing from without entereth into the man, it cannot defile him; [19] Because it entereth not into his heart, but into the belly, and goeth out into the draught, purging all meats? [20] And he said, That which cometh out of the man, that defileth the man. [21] For from within, out of the heart of men, proceed evil thoughts, adulteries (7th), fornications (7th), murders (6th), [22] Thefts (8th), covetousness (10th), wickedness, deceit, lasciviousness, an evil eye, blasphemy, pride, foolishness: [23] All these evil things come from within, and defile the man.

Ephesians 1:9 KJV
[9] Having made known unto us the mystery of his will, according to his good pleasure which he hath purposed in himself:

Ephesians 3:3-4 KJV
[3] How that by revelation he made known unto me the mystery; (as I wrote afore in few words, [4] Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)

Ephesians 6:19 KJV
[19] And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel,

Colossians 1:27 KJV
[27] To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory:

His disciples asked Jesus the meaning of the parables.

Mark 7:17 KJV
[17] And when he was entered into the house from the people, his disciples asked him concerning the parable.

God has promised if you will seek him you will find him if you search with all your heart.

Searching with all your heart involves reading the Holy Bible for yourself.

His disciples asked Jesus, and Jesus told them the meaning.

It is there for you to read and understand.

Deuteronomy 4:29 KJV
[29] But if from thence thou shalt seek the Lord thy God, thou shalt find him, if thou seek him with all thy heart and with all thy soul.

Jeremiah 29:13 KJV
[13] And ye shall seek me, and find me, when ye shall search for me with all your heart.