'Peaceful' in the Bible

"Whenever a strong man, fully armed and equipped, is guarding his own castle, he enjoys peaceful possession of his property;

including kings and all who are in high station, in order that we may live peaceful and tranquil lives with all godliness and gravity.

The wisdom from above is first of all pure, then peaceful, courteous, not self-willed, full of compassion and kind actions, free from favouritism and from all insincerity.

Instead of that, it should be a new nature within--the imperishable ornament of a gentle and peaceful spirit, which is indeed precious in the sight of God.