'Understand Book of Daniel'
Dan 12:5-7 Then I, Daniel, looked; and there stood two others, one on this riverbank and the other on that riverbank. And one said to the man clothed in linen, who was above the waters of the river, "How long shall the fulfillment of these wonders be?" Then I heard the man clothed in linen, who was above the waters of the river, when he held up his right hand and his left hand to heaven, and swore by Him who lives forever, that it shall be for a time, times, and half a time; and when the power of the holy people has been completely shattered, all these things shall be finished.
For Michael the Archangel to intervene and help the Jews not to be deceived by Antichrist, this will be during the period of the 5th Seal, when the temple of Antichrist will be constructed.
In the book of Daniel, the Jews are referred to at 'your people' and Christians as 'holy people'. Christians will be persecuted and martyred for three and a half years (times) and this is same as Rev 12:
Rev 12:13-14 Now when the dragon saw that he had been cast to the earth, he persecuted the woman who gave birth to the male Child. But the woman was given two wings of a great eagle, that she might fly into the wilderness to her place, where she is nourished for a time and times and half a time, from the presence of the serpent.
Rev 13:5-7 And he was given a mouth speaking great things and blasphemies, and he was given authority to continue for forty-two months. Then he opened his mouth in blasphemy against God, to blaspheme His name, His tabernacle, and those who dwell in heaven. It was granted to him to make war with the saints and to overcome them. And authority was given him over every tribe, tongue, and nation.
This period of the Wrath of Satan for 42 months is the same as the Period of Sorrows or Tribulation (in Mat 24:9-28, Mark 13:9-23, Luke 21:12-24, Rev 6:9-11, etc. This will be the period of persecution, tribulation, torture and imprisonment but also a time of refining and purification.
Rev 6:9-11 When He opened the fifth seal, I saw under the altar the souls of those who had been slain for the word of God and for the testimony which they held. And they cried with a loud voice, saying, "How long, O Lord, holy and true, until You judge and avenge our blood on those who dwell on the earth?" Then a white robe was given to each of them; and it was said to them that they should rest a little while longer, until both the number of their fellow servants and their brethren, who would be killed as they were, was completed.
John 15:12-13 "This is My commandment, that you love one another as I have loved you. Greater love has no one than this, than to lay down one's life for his friends."
This will also be the time when Christians will joyfully and openly exposing the Antichrist as the incarnate of Satan. A time when Christians condemn the temple of the Antichrist. A time when the gospel is preached to all by the Holy Spirit using the months and bodies and these martyrs.
1John 3:16 By this we know love, because He laid down His life for us. And we also ought to lay down our lives for the brethren.
This will also be the time when Christians can obey His words of laying down their lives for the brethren just as our Lord Jesus had down His life for us.
During this time our Father the Lord God Almighty, will gladly allow Satan to torture and martyr His obedient children, who will become the bride of the Lamb.