The word for week in Hebrew means a set of seven (days or years). The word for month in Greek only means month. It is the finite specified time given to Satan. The symbolism is in the use of words and use of definitions. There is no symbolism attached to the 42 months. And the 42 months is associated with the 1260 days. So if you want to say those 42 months are symbolic for 1260 days, there you go.
70 weeks is not equal to the exact time until the advent of Christ. That would be 69 weeks.
As I've said 42 months symbolizes specific time, given to the beast to destroy. It is NOT 1260 days, because that too symbolizes specific time, given to the Church for proclaiming the Gospel. These specific symbolic times are equal to time, times and half/dividing of time. That's how we know they are symbolic and not literal. Time, times and half/dividing of time is equivalent to the whole New Covenant Messianic age. These times are not literal, but rather equal amounts of time given to each entity for good or evil throughout this Gospel age.
The woman, which symbolizes the Church has a place in the wilderness (world) where she is fed a thousand two hundred threescore days. This time of nourishment is likened to a time, and times, and half a time from the face of the serpent. That would be the whole Messianic Gospel age.
Revelation 12:6 (KJV) And
the woman fled into the wilderness, where she hath
a place prepared of God, that they should feed her there a thousand two hundred and threescore days.
Revelation 12:14 (KJV) And to
the woman were given two wings of a great eagle, that she might fly into the wilderness, into her place, where
she is nourished for a time, and times, and half a time, from the face of the serpent.
The world, which is what Gentiles means are given forty two months to tread underfoot the holy city. And this is also the amount of time given the beast to blasphemy God, His name, and His tabernacle and them that dwell in heaven, and the amount of time he makes war with and overcomes the saints, having power over the nations of the world. And according to Daniel this time the saints are worn out and given into his hand is likened to a time, times and a half.
Revelation 11:2 (KJV) But the court which is without the temple leave out, and measure it not; for it is
given unto the Gentiles: and the holy city shall they tread under foot forty and two months.
Revelation 13:5 (KJV) And there was given unto him
a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months.
Revelation 13:6-7 (KJV) And
he opened his mouth in blasphemy against God, to blaspheme his name, and his tabernacle, and them that dwell in heaven. And it was given unto him to make war with the saints, and to overcome them: and power was given him over all kindreds, and tongues, and nations.
Daniel 7:25 (KJV) And
he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and
they shall be given into his hand until a time and times and the dividing of time.
Last, but not least Daniel hears the man clothed in linen say the amount of time to scatter the power of the holy people (42 months) is for a time, times and an half when ALL these things shall be accomplished.
Daniel 12:7 (KJV) And
I heard the man clothed in linen, which
was upon the waters of the river, when he held up his right hand and his left hand unto heaven, and sware by him that liveth for ever
that it shall be for a time, times, and an half; and when he shall have accomplished to scatter the power of the holy people, all these things shall be finished.
What this shows is that the 1260 days as well as the 42 months equal time, times and an half/dividing of time. Since Daniel's prophesy tells us that all that is written will be finished in time, times and an half of time, these times equate to the whole New Covenant Messianic period of time for proclaiming the Gospel unto all the world, a symbolic thousand years. The time the prophets foretell as the Day of the Lord.