Rev 21:11, speaking of the New Jerusalem, reads:
It has the
glory of God (ἔχουσαν τὴν δόξαν τοῦ θεοῦ) and a radiance like a very rare
jewel, like a jasper, clear as crystal. (NRSV)
Here, the New Jerusalem has
the glory of God; in other words, God is sharing HIs glory with something (or,
more properly, something else). As Harrington noted:
Because of
its heavenly origin, it reflects the divine glory. For that matter, it is
filled with the presence of God (vv. 22–23). See Isa 60:1–2; Ezek 43:2. (Wilfrid
J. Harrington, Revelation [Pagina Series 16; Collegeville, MN:
Liturgical Press, 2008], 213)
Such should give pause to those who
misread Isa 42:8 as if it means God will never share his glory ever (instead,
the context is about false gods and idols).