Heedfulness: Commanded
Source: TTT
Exodus 23:13
Pay close attention to everything I have said to you. You must not invoke the names of other gods; they must not be heard on your lips.
Proverbs 4:25–27
Let your eyes look forward; fix your gaze straight ahead. / Make a level path for your feet, and all your ways will be sure. / Do not swerve to the right or to the left; turn your feet away from evil.