'Peacefully' in the Bible

I will lie down and sleep peacefully, for you, Lord, make me safe and secure.

For they do not speak in friendly ways,but contrive deceitful schemesagainst those who live peacefully in the land.

{To the chief Musician. On Jeduthun. A Psalm of David.} Upon God alone doth my soul rest peacefully; from him is my salvation.

Upon God alone, O my soul, rest peacefully; for my expectation is from him.