Proverbs 3:21 My son, let not them depart from thine eyes: keep sound wisdom and discretion:
22 So shall they be life unto thy soul, and grace to thy neck.
23 Then shalt thou walk in thy way safely, and thy foot shall not stumble.
24 When thou liest down, thou shalt not be afraid: yea, thou shalt lie down, and thy sleep shall be sweet.
Jeremiah 31:25 For I have satiated the weary soul, and I have replenished every sorrowful soul.
26 Upon this I awaked, and beheld; and my sleep was sweet unto me.