Here is a dispensational change that has not occurred yet but will soon.
Mt 13:33 Another parable spake he unto them; The kingdom of heaven is like unto leaven, which a woman took, and hid in three measures of meal, till the whole was leavened.
34 All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them:
35 That it might be fulfilled which was spoken by the prophet, saying, I will open my mouth in parables; I will utter things which have been kept secret from the foundation of the world.
36 Then Jesus sent the multitude away, and went into the house: and his disciples came unto him, saying, Declare unto us the parable of the tares of the field.
37 He answered and said unto them, He that soweth the good seed is the Son of man;
38 The field is the world; the good seed are the children of the kingdom; but the tares are the children of the wicked one;
39 The enemy that sowed them is the devil; the harvest is the end of the world; and the reapers are the angels.
40 As therefore the tares are gathered and burned in the fire; so shall it be in the end of this world.
41 The Son of man shall send forth his angels, and they shall gather out of his kingdom all things that offend, and them which do iniquity;
42 And shall cast them into a furnace of fire: there shall be wailing and gnashing of teeth.
43 Then shall the righteous shine forth as the sun in the kingdom of their Father. Who hath ears to hear, let him hear.
We learn from our study of scripture that the furnace of fire is the great tribulation prophetically called in 17 prophecies in 12 Bible books "the day of the Lord." It was previewed by Shadrach, Meshach, and Abednego, in Daniel's prophecy. It is a purifying judgement.
These tares are growing together but at the time of harvest the angels are gathering them into bundles TO BE BURNED after the wheat is gathered into the barn.
Here is the parable that he is explaining.
24 Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field:
25 But while men slept, his enemy came and sowed tares among the wheat, and went his way.
26 But when the blade was sprung up, and brought forth fruit, then appeared the tares also.
27 So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares?
28 He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up?
29 But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them.
30 Let both grow together until the harvest: and in the time of harvest I will say to the reapers, Gather ye together first the tares, and bind them in bundles to burn them: but gather the wheat into my barn.
Look at the order. The rapture of the church which God is forming in this world (age 165 aion). Then the burning of the bundles. There will be a few saved folk (wheat) that are mixed in with the tares and here is the command to them.
Re 18:4 And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues.
Denominational bundles with strange teachings is what we see as the end of this age draws near. Much of it is represented here on this forum
@ 2Cor 13:5. We must be sure we are born again. The mysteries of the kingdom of heaven is exclusive to this age between the cross and resurrection and the tribulation when God will judge the sin of the nations and the world and purify it in preparation for the kingdom age.
I would not advise being an amillennialist at that time if you happen to be alive when this judgement begins.