Isaiah 9:3

And not increased the joy] So Heb. written text, ancient Greek versions and Vulg. But Heb. traditional reading, Syr., and LXX give 'increased the joy to it,' RV 'increased their joy'; and this reading is demanded by the context, where figures are multiplied to indicate excessive joy. The past tenses (prophetic perfect, see Isaiah 9:2) are again used to describe what is yet in the future. Before thee] appearing as worshippers before Jehovah in His sanctuary (Deuteronomy 12:12).

Glory] i.e. wealth and possessions, in which the people take pride. See the same word in the same sense Genesis 31:1.