Serious question; how do you know the prophies written in Daniel 7 refer to Jesus' second coming?
In the NT whenever Jesus fulfils/fulfilled prophecy, we are told; "this is to fulfil what the prophet said". But as far as I know, Jesus didn't quote, or teach, from Daniel when speaking of his return.
In the book of Daniel, there is a time span phrase used in two chapters. And once in Revelation.
"time, times, half time" in the text of:
Daniel 7:25 - the little horn oppresses the people of Israel.
Daniel 12:7 - the worst time in the nation of Israel history. (the great tribulation)
Revelation 12:14 - Satan persecutes the remnant of the woman (i.e. Israel)
In Daniel 7:25 the little horn (who will have become the beast of Revelation at that time) oppresses the people of Israel. Until judgment comes and destroys him and his kingdom.
In Daniel 7:27 the people of Israel inherit the Kingdom of God.
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okay, on to Daniel 12:7, the time, times, half time worst time in Israel's history. We go to....
Daniel 12:11 - the abomination of desolation setup. Then 1290 days.
Daniel 12:12 - blessed is he who waits, remains, to the 1335th day.
The abomination of desolation (referred to by Jesus, Matthew 24:15, Daniel the prophet in that text) will be setup, beginning the great tribulation. Then 1290 days later, the kings of the earth will find reason to make war on the messiah. They assemble their armies for 45 days for that purpose.
In Zechariah 14:1-3, God gathers all nations against Jerusalem to battle. The messiah, who will fight the battles of God in defending Israel (from the Rambam), will destroy the men of those armies, from the greatest to the smallest, Ezekiel 39:17-20, Revelation 19:17-18 (same description) - at Jesus's Second Coming.
Daniel 12:12 - blessed is he who waits, remains, to the 1335th day. On the 1335th day, the day of Jesus's Return, the people of Israel who will have remained faithful to God throughout the whole ordeal, will be blessed by inheriting the Kingdom of God (Daniel 7:27 same as).
The messianic age then begins.
The great tribulation is really not about the church going through it. But the nation of Israel.