Acts 18:9–10

The Lord encourages Paul at night to speak and not be silent

9And the Lord said at night through a vision to Paul, “Do not be afraid, but speak, and do not be silent,

10because I am with you, and no one will attack you to harm you, because I have many people in this city.”

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In its context

7And moving on from there, he went into the house of a certain man named Titius Justus, a worshiper of God, whose house was next door to the synagogue.

8And Crispus, the synagogue leader, believed in the Lord together with his whole household, and many of the Corinthians who heard were believing and being immersed.

…

11And he settled there a year and six months, teaching among them the word of God.

12But when Gallio was proconsul of Achaia, the Jews made a united attack on Paul and brought him before the judgment seat,

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Its words in the original

Courage