'Tranquil' in the Bible

They discovered abundant and excellent grazing lands there, where the land was very broad, secure, and tranquil, because the former inhabitants there were descendants of Ham.

A tranquil heart is life to the body,but jealousy is rottenness to the bones.

You will say, ‘I will go up against a land of open villages; I will come against a tranquil people who are living securely, all of them living without walls and without bars or gates—

And the peace of God [that peace which reassures the heart, that peace] which transcends all understanding, [that peace which] stands guard over your hearts and your minds in Christ Jesus [is yours].

for kings and all those who are in authority, so that we may lead a tranquil and quiet life in all godliness and dignity.

but the inner person of the heart, the lasting beauty of a gentle and tranquil spirit, which is precious in God's sight.