17 Grk “brothers,” but the Greek word may be used for “brothers and sisters” or “fellow Christians” as here (cf. ἀδελφός 1, where considerable nonbiblical evidence for the plural ἀδελφοί [adelphoi] meaning “brothers and sisters” is cited).
18 Grk “for the advance of the gospel.” The genitive εὐαγγελίου (euangeliou) is taken as objective.

In other versions

I want you to know, brothers, that what has happened to me has really served to advance the gospel,

Now I want you to know, brothers and sisters, that what has happened to me has actually served to advance the gospel.

Now I want you to know, brothers and sisters, that what has happened to me has actually advanced the gospel,

And I want you to know, my dear brothers and sisters, that everything that has happened to me here has helped to spread the Good News.

Now I want you to know, brothers, that my circumstances have happened instead for the progress of the gospel,

But I would ye should understand, brethren, that the things which happened unto me have fallen out rather unto the furtherance of the gospel;

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