If the form of the question is to be retained in verse 50, it must be so structured as to imply a strong affirmation that God had himself made all such things. If this cannot be brought out clearly in the question, then one may shift to an emphatic statement. After all, the question is merely rhetorical even as the preceding two questions are, and in some languages such expressions must be restructured as emphatic statements. God is obviously not asking for information, but by means of the question form is emphasizing his lack of dependence upon what man has built.

Quoted with permission from Newman, Barclay M. and Nida, Eugene A. A Handbook on The Acts of the Apostles. (UBS Handbook Series). New York: UBS, 1972. For this and other handbooks for translators see here .