'Confident' in the Bible

And {your life shall hang in doubt before you}, and you shall be startled night and day, and you shall not be confident of your life.

Look, [if the] river is turbulent, it is not frightened; it is confident even though [the] Jordan rushes against its mouth.

Though an army encamp against me, my heart will not fear. Though war arise against me, [even] in this I [will] remain confident.

The wise is cautious and turns from evil, but the fool throws off restraint and is confident.