Here "word" refers to the message about Jesus that they had believed. Alternate translation: "glorified God for the message about the Lord Jesus" or "glorified the Lord for his word" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This can be stated in active form. Alternate translation: "As many as God appointed to eternal life" or "All the people whom God had chosen to receive eternal life" (See: [[rc://en/ta/man/translate/figs-activepassive]])