Passage
Thou shalt not commit adultery.
Thou shalt not commit adultery.
Exodus 20:12 Honour thy father and thy mother, that thy days may be prolonged in the land that Jehovah thy God giveth thee.
Exodus 20:13 Thou shalt not kill.
Exodus 20:14 Thou shalt not commit adultery.
Exodus 20:15 Thou shalt not steal.
Exodus 20:16 Thou shalt not bear false witness against thy neighbour.
The verse centers on "thou", "shalt", "commit", and "adultery". It is saying that the verse draws attention to "thou" and "shalt", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "Thou shalt not kill..." into verse 15's "Thou shalt not steal...", so "thou" and "shalt" belong inside that flow. In Exodus context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "thou" and "shalt" with trust shaped by these words, not by a vague optimism outside the passage.