You find or come across this corruption of a "Secret Rapture" and following it a "Seven Year Tribulation", but they are not scriptural. First the proponents claim Christ will come secretly to take the church to heaven, and then, seven years later, He will come in an open demonstration of the Second Coming. In between those two events, the Antichrist is supposed to come into power and the great tribulation period of seven years takes place. None of it is scriptural but what you can call a deception to confuse good people and misdirect them into a lie.
The Seventy Year prophecy of Daniel 9 was not pointing to a "Seven Year Tribulation", but to Christ who was the point of the prophecy. The replacement of the ceremonial law and sacrificial system, the sacrifice of the lamb which pointed to Christ was replaced by Christ sacrifice at the cross and the tabernacle veil torn from top to bottom as the type replaced the antitype.
Matthew 27:51
And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent;
Mark 15:38
And the veil of the temple was rent in twain from the top to the bottom.
Luke 23:45
And the sun was darkened, and the veil of the temple was rent in the midst.
The Seventy Year prophecy of Daniel 9 was not pointing to a "Seven Year Tribulation", but to Christ who was the point of the prophecy. The replacement of the ceremonial law and sacrificial system, the sacrifice of the lamb which pointed to Christ was replaced by Christ sacrifice at the cross and the tabernacle veil torn from top to bottom as the type replaced the antitype.
Matthew 27:51
And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent;
Mark 15:38
And the veil of the temple was rent in twain from the top to the bottom.
Luke 23:45
And the sun was darkened, and the veil of the temple was rent in the midst.