Proverbs 4:21LXX

19The way of the wicked as darkness: they know not at what they stumble.

20My son, attend to my words; incline thine ear unto my sayings.

21Let them not depart from thine eyes; keep them in the midst of thine heart.

22For they life unto those that find them, and health to all their flesh.

23Keep thy heart with all diligence; for out of it the issues of life.