Numbers 35:30

³⁰ whoso smiteth a person, by the mouth of witnesses doth [one] slay the murderer; and one witness doth not testify against a person -- to die.

Go out and coming in

In 2 Samuel 3:25, Zechariah 8:10, and Psalm 121:8, this signifies all the states of life from beginning to end. This also signifies every state of good and truth in worship. (Apocalypse Explained 695[12], Arcana Coelestia 9927)