NONE of the words, parousia, erchomai, epiphaneia, refer to the time when Jesus shall come riding a white horse... not even apokalupsis or apocalyptic. They are all pointing to the time when Jesus BEGINS executing judgment, unto life and damnation. The only one that really doesn't is:
Rev 16:15 KJV Behold, I come as a thief. Blessed
is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.
To reiterate what is said in Matt 24:39-40. The days before the flood, when Noah had entered into the ark, when they ALL did not know the hour of the impending flood, shall be likened unto the parousia of Christ. I.e., the days after the parousia will be likened unto the days (before the flood) when Noah entered the ark. It will be the same days as Peter spoke of...
2Pe 3:3-7 KJV 3 Knowing this first, that there shall come in the last days scoffers, walking after their own lusts, 4 And saying, Where is the promise of his coming? for since the fathers fell asleep, all things continue as
they were from the beginning of the creation. 5 For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water: 6 Whereby the world that then was, being overflowed with water, perished: 7 But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
Men shall begin to say, "where is the promise of his coming/ parousia", AFTER the parousia, when countless numbers of men and women will seemingly have missed out on both the rapture and the judgment of wicked men. When they shall say, "Peace and safety", sudden destruction will then come upon them unawares...
Unprecedented peace will follow those days of tribulation, (that precedes the rapture). Unprecedented peace will follow the rapture, and men will say, "where is the promise of his coming".
1Th 5:2-4 KJV 2 For yourselves know perfectly that the day of the Lord so cometh as a thief in the night. 3 For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. 4 But ye, brethren, are not in darkness, that
that day should overtake you as a thief.
The rapture/ parousia will not come like a thief upon those who watch and are sober, because Jesus gave us all the signs to look for that will preceed the rapture.
1Th 5:5-10 KJV 5 Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness. 6 Therefore let us not sleep, as
do others; but let us watch and be sober. 7 For they that sleep sleep in the night; and they that be drunken are drunken in the night. 8 But let us, who are of the day, be sober, putting on the breastplate of faith and love; and for an helmet, the hope of salvation. 9 For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ, 10 Who died for us, that, whether we wake or sleep, we should live together with him.
Half of professing Christians will fail to recognize the "signs of his coming", as per the disciples' question.
When Jesus comes for those who are both ready and watching...
Mat 24:42-44 KJV 42 Watch therefore: for ye know not what hour your Lord doth come. 43 But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up. 44 Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.
When Jesus says, "... ye KNOW NOT what hour..." And "... if the goodman had KNOWN...", HE/YE would have watched for the signs of his coming. When Jesus said that YE/HE does not KNOW the hour, JESUS is saying that we have no idea of how bad (to know with the senses, eido [G1492]) those days are going to be... WHEN HE COMES. He is not talking about knowing with the mind of understanding, [aka when], but rather he is talking about knowing with the senses how bad it will be. Paul said that we, who are of the light, will not be overtaken like a thief in the night. We are not appointed unto that wrath, but we are appointed to obtain the salvation... the resurrection of life... of our bodies.
We need to be "ready ALSO". IF you, or anyone, is not expecting to be here when ALL of the events of Matt 24:4-30 take place, (by not expecting to personally witness) all of those things, chances are you will not be ready, and will not survive until he comes, or you won't be one of those taken when he comes! Truly, a great many will be ready, but will still die before he comes at the parousia. Watching for those signs to happen is a key component to being ready when that day approaches.
Heb 10:23-25 KJV 23 Let us hold fast the profession of
our faith without wavering; (for he
is faithful that promised

24 And let us consider one another to provoke unto love and to good works: 25 Not forsaking the assembling of ourselves together, as the manner of some
is; but exhorting
one another: and so much the more, as ye see the day approaching.
1Th 5:6 KJV Therefore let us not sleep, as
do others; but let us watch and be sober.
Be Blessed
The PuP