In Luke 14:28, this signifies to determine how one may procure for oneself interior truths. (Arcana Coelestia 4599[5])

In Revelation 18:19, this signifies the belief that for certain temporary actions people could receive spiritual blessings and rewards after death. (Apocalypse Revealed 789)

When something is described as quiet, still or calm in the Bible, it represents the state of peace that comes with being aligned with the Lord's will. When you want what is good and know what is true, not much will bother you.

(Odkazy: Heaven and Hell 297; The Apocalypse Explained 365 [40])