Paul uses the question to catch the attention of the reader and to start talking about something new. AT: "This is what Abraham our physical ancestor found" (See: [[rc://en/ta/man/translate/figs-rquestion]])
Paul uses this question to add emphasis. He speaks of the Scriptures as if they were alive and could talk. AT: "For we can read in the scripture" (See: [[rc://en/ta/man/translate/figs-rquestion]] and [[rc://en/ta/man/translate/figs-personification]])