Blessed shalt thou be when thou comest in, and blessed shalt thou be when thou goest out.

Blessed shalt thou be coming in and going out.

A blessing will be on your coming in and on your going out.

Blessed shall you be entering and departing.

Benedictus eris in tuo ingressu, et benedictus eris in egressu tuo.

When thou comest in - From thy employment, thou shalt find that no evil has happened to the family or dwelling in thy absence.
When thou goest out - Thy way shall be made prosperous before thee, and thou shalt have the Divine blessing in all thy labors.

Blessed [shalt] thou [be] when thou (e) comest in, and blessed [shalt] thou [be] when thou goest out.
(e) All your enterprises will have good success.

Blessed shalt thou be when thou comest in, and blessed shalt thou be when thou goest out. In all their business and employments of life whether within doors or without; in the administration of every office, whether more public or private; and in all their journeys going out and coming home; and particularly when they went out to war, and returned, all should be attended with success.

Comest in - That is, in all thy affairs and administrations.