Messiah Jesus plainly says in Mt 24:36-37:
But of that day and hour no one knows, not even the angels of Heaven, but My Father only. But, as the days of Noah were, so also will the coming of the Son of Man be.
It does the cause of the truth no good whatsoever, as it regards the gospel and the Kingdom of God, when some one claims that he knows or that the Bible guarantees a specific day and hour. YHVH is the God of Hosts (Armies), and knows how to wage war and to keep certain necessary things secret. There is an enemy who could figure it out, too, if it were revealed to any one else.
The Lord Jesus also rebukes His people, especially those who are given to rule and lead, in Mt 16:3a:
. . .Hypocrites! You know how to discern the face of the sky, but you cannot discern the signs of the times.
So, there are signs of the times, and if the sons of Issachar could discern the times and have understanding as to what Israel should do (1Chr 12:23, 32) without the Holy Spirit dwelling within them, how much more should we who do have that promise of the Father through the risen Savior understand our own times in this generation which God has given us to live in!?
Jesus/Yeshua bemoans His rejection by His own people, in Mt 23:38-39:
Behold! Your house is left to you desolate; for I say to you, You shall see Me no more till you say, ‘Blessed is He who comes in the name of YHVH’!
In other words, “Blessed are You, Lord Jesus Christ!” “Save us, Lord Jesus, Son of David!”
Thank God for His ‘untils‘!
The Apostle Paul writes by inspiration of the Holy Spirit, in Rom 11:25:
For I do not desire, brethren, that you should be ignorant of this mystery, lest you should be wise in your own opinion, that blindness in part has happened to Israel until the fullness of the Gentiles has come in.
Another sign of the times and a clue as to the timing of the taking up of those alive and remaining in Christ until His coming (1Thes 4:15-18) is given us by our Savior in Lk 21:24b:
. . .And Jerusalem will be trampled by Gentiles until the times of the Gentiles are fulfilled.
The victory and capture of Jerusalem by Israel in the June 1967 Six-Day War did not bring to fulfillment the times of the Gentiles nor their fullness into the Body of Messiah. Jerusalem is still being trampled under foot by various Gentile agencies: the Temple Mount has a Gentile temple upon it; East Jerusalem, which is the Biblical part of today’s Jerusalem, is mostly populated by non-Jews, and has long been considered as a possible concession to them should there be a Palestinian state; the Vatican and the United Nations all claim and insist that Jerusalem, in some form or other, be under international control rather than under Israeli sovereignty. Clearly, the ‘untils‘ have not yet occurred.
So, it seems that the rapture will not occur until individual Jewish believers and the time and the fullness of the Gentiles have been completed –for the Bride is made up of both Jewish and Gentile believers as one new man– and until the Jewish people as the nation of Israel call out desperately for Jesus/Yeshua to save them. No one can predict or prophesy the day and hour for all this to concur, but we are to be discerning of the times we live in, watchful and prayful as we continue in His business until that day does surely come.