Daniel 9:23
At the beginning of thy supplications the commandment came forth, and I am come to shew thee; for thou art greatly beloved: therefore understand the matter, and consider the vision.
Cross-reference
Daniel 9:25 provides the specific prophecy Daniel is commanded to understand in verse 23 — the 70 weeks timeline that follows directly.
In Daniel 10:11, Daniel is addressed as 'man greatly loved,' the exact same phrase from 9:23.
In Daniel 10:12, the same timing is emphasized: from the first day Daniel humbled himself, his words were heard and the messenger came.
In Daniel 10:19, the same greeting 'O man greatly loved' is used again, along with encouragement to be strong.
In Daniel 8:17, Gabriel also tells Daniel to understand the vision — a direct parallel to the same angelic commission here in chapter 9.
In Matthew 24:15, Jesus directly cites Daniel's prophecy about the abomination of desolation, referencing the vision Daniel was told to understand here.