the promise our twelve tribes are hoping to see fulfilled as they earnestly serve God day and night. It is because of this hope, O king, that I am accused by the Jews.
KJV
Unto which [promise] our twelve tribes, instantly serving [God] day and night, hope to come. For which hopeβs sake, king Agrippa, I am accused of the Jews.
ASV
unto which promise our twelve tribes, earnestly serving God night and day, hope to attain. And concerning this hope I am accused by the Jews, O king!