'Mighty' in the Bible

And perished hath refuge from the swift, And the strong strengtheneth not his power, And the mighty delivereth not his soul.

And the courageous of heart among the mighty, Naked doth flee in that day, An affirmation of Jehovah!

For I have known -- many are your transgressions, And mighty your sins, Adversaries of the righteous, taking ransoms, And the needy in the gate ye turned aside.