Passage
And at dawn he came again to the temple,
And at dawn he came again to the temple,
John 8:1 And at dawn he came again to the temple,
John 8:2 and all the people were coming unto him, and having sat down, he was teaching them;
John 8:3 and the scribes and the Pharisees bring unto him a woman having been taken in adultery, and having set her in the midst,
The verse centers on "dawn", "came", "again", and "temple". It is saying that the verse draws attention to "dawn" and "came", so its meaning should be read from those terms before moving to application.
The next verse adds "and all the people were coming unto...", so "dawn" and "came" should be read forward into that movement. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "dawn" and "came" with trust shaped by these words, not by a vague optimism outside the passage.