The most specific reference to the protection that God promises for His people at the end of the age is in Revelation 12. (Our booklet The Book of Revelation Unveiled addresses divine protection for the Church in the section "Satan's War Against the People of God" that deals with this chapter.) Revelation 12:14 says, "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."
However, we find a further prophecy in the same context that tells us at least part of the Church will suffer persecution at the same time that God protects others: "And the dragon was enraged with the woman, and he went to make war with the rest of her offspring, who keep the commandments of God and have the testimony of Jesus Christ" (verse 17).
The Bible records many ways by which God protected His people in the past, but does not reveal specifically how, where, when—or even all of the "who"—He will protect in the end. However, we have confidence that He will reveal what we need to know at the essential time. In the meantime, there can be no doubt our focus must be on the spiritual preparation for Christ's return and the establishment of our Father's Kingdom.