The verses that people refer to and try to make a point that there will be some end time 7 year tribulation period is in Daniel 9:24-27 "Seventy weeks are determined upon thy people and upon thy holy city, to finish the transgression, and to make an end of sins, and to make reconciliation for iniquity, and to bring in everlasting righteousness, and to seal up the vision and prophecy, and to anoint the most Holy. Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times. And after threescore and two weeks shall Messiah be cut off, but not for himself: and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with a flood, and unto the end of the war desolations are determined. And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make it desolate, even until the consummation, and that determined shall be poured upon the desolate."
They that preach this false 7 year tribulation doctrine say that these verses are speaking of the antichrist. When it is actually speaking of the messiah, of Jesus Christ. These 70 weeks were fulfilled in Christ's time.
"...others take it to be the Antichristian prince spoken of in the last verse, an opinion which derives some support from Daniel 7:25. According to this interpretation, the covenant refers to the agreement which the prince makes with the large number of persons who become apostates. But (1) the word "covenant" does not apply to any such agreement, but rather to a covenant with God, and (2) in Daniel 9:26 it is the people of the prince, and not the prince, which is the subject of the sentence. It is therefore more appropriate to take Messiah as the subject. During the last closing week of the long period mentioned, Messiah, though cut off, shall confirm God's covenant (comp. Daniel 11:22; Daniel 11:28; Daniel 11:30; Daniel 11:32) with many, that is, with those who receive Him." -Ellicott commentary on 9:27
Many try to say that the desolation of the temple in Matthew 24:15, is what is referred to in the above scriptures of Daniel as "the midst of the week he shall cause the sacrifice and the oblation to cease". These are two different events. The desolation of the temple in Matthew is referring to "the desecration of the sanctuary by the mad attempt of Antiochus Epiphanes to stop the "daily sacrifice," and to substitute an idolatrous worship in its place (2 Maccabees 6:1-9)." -Ellicott commentary on Matthew 24:15
The scripture in Daniel is referring to "When Christ, in the MIDST of the week, offered his own body, that great sacrifice for the expiation of sin, to reconcile sinners to God; by that most holy and acceptable victim, he completed and abolished all the typical sacrifices of the law. -Benson commentary on Daniel 9:27