* **from the marketplace** - This is a public space of business, where buying and selling of goods, cattle, or services take place; "from the public square" (UDB).
* **These men who have** - The Jewish leaders were speaking and were referring to Paul and Silas by "these men."
* **turned the world upside down** - This is an idiom meaning "to cause trouble" (UDB). The Jewish leaders were expressing their jealousy by exaggerating the influence Paul and Silas have with their teaching. (See: [[:en:ta:vol2:translate:figs_hyperbole]])