In the Hebrew, the word translated “weeks” is actually the word “sevens.” So, the text actually says, “Seventy sevens have been decreed…” The prophecy is usually referred to as “The 70 Weeks of Years.” This name derives from the opening words of most English translations: “Seventy weeks have been decreed” (Daniel 9:24).
It is the cornerstone of Messianic prophecy because it establishes the timing of both the First and Second Advents of the Messiah.
One of the most remarkable and important prophecies in the Bible is found in Daniel 9:24-27.