What God purposes to do that is what He does

"Wherever God purposes to save men of any nation, thither he sends his gospel in his proper time. Paul and Silas essayed to go into Bithynia, but the Spirit suffered them not. And they were directed by a heavenly vision to go into Macedonia, where the word of the Lord had free course and was glorified. Paul met with great opposition when he came to Corinth, but the Lord encouraged him to continue there: For (said he) I have much people in this city." - Robert Sandeman, Letters on Theron and Aspasio, pg. 335