# their own position of authority

"the responsibilities God entrusted to them"

# their proper dwelling place

The proper dwelling place of angels is heaven.

# God has kept them in everlasting chains, in utter darkness

"God has put these angels in a dark prison from which they will never escape"

# utter darkness

Here "darkness" is a metonym which represents the place of the dead or hell. Alternate translation: "in utter darkness in hell" (See: [[rc://en/ta/man/jit/figs-metonymy]])

# the great day

the final day when God will judge everyone