Charles Ellicott Commentary Psalms 85:8

"I will hear what God Jehovah will speak; For he will speak peace unto his people, and to his saints: But let them not turn again to folly." — Psalms 85:8 (ASV)

Speak peace ... —This word “peace” comprehends all that the nation sighed for:

“Peace,
Dear nurse of arts, plenties, and joyful truth.”

To Christians the word has a higher meaning still, which directed the choice of this psalm for Christmas Day.

Folly. —See Psalms 14:1; Psalms 49:13. Here it most probably implies idolatry.