Hebrews 5:12-14 For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat. For every one that useth milk is unskilful in the word of righteousness: for he is a babe. But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.

Hidden here in these three verses is the key to everything within the Kingdom. We skim over those four words in favor of the popular power words like teacher, principles, oracles and strong meat. Search again, the key is not in any of those words, and not even close to them.

Here they are and listen closely. “By reason of use.”

Sit there and tell me with all honesty that the Word of God has been written on your heart and that the end result is that nothing happened. You may have head knowledge but if it hasn’t changed you heart, you have not put it to use.

Psalm 4:4, 9:1 Stand in awe, and sin not: commune with your own heart upon your bed, and be still. Selah. I will praise thee, O Lord, with my whole heart; I will shew forth all thy marvellous works.

Psalm 10:3, 6 For the wicked boasteth of his heart’s desire, and blesseth the covetous, whom the Lord abhorreth. He hath said in his heart, I shall not be moved: for I shall never be in adversity.

Malichi 2:2 If ye will not hear, and if ye will not lay it to heart, to give glory unto my name, saith the Lord of hosts, I will even send a curse upon you, and I will curse your blessings: yea, I have cursed them already, because ye do not lay it to heart.

By reason of use.

Habakkuk 2:6 Shall not all these take up a parable against him, and a taunting proverb against him, and say, Woe to him that increaseth that which is not his! how long? and to him that ladeth himself with thick clay!

Those who are guilty of it will never understand.

I could stop right there and some would get my meaning. Maybe because they themselves have been victims of ridicule. No amount of explanation will ever penetrate the thickness of the perpetrator. It is a sad truth.

You cannot build yourself up by putting others down. That fact has not presented itself to the cruel heart. This verse when it speaks to thick clay speaks to this issue. The offenders don’t get it. Thick clay does not bake well. It will never be a vessel fit for use, as it bakes unevenly, that part puffs up, misshaped, weak.

1 Corinthians 4:6 And these things, brethren, I have in a figure transferred to myself and to Apollos for your sakes; that ye might learn in us not to think of men above that which is written, that no one of you be puffed up for one against another.

The cruel heart will never get it. No amount of parables, psalms or proverbs will ever penetrate their thickness, their dull minds. It takes a changed heart and only God can fix that.