As long as Weathered Bodyguards is untapped, all combat damage that would be dealt to you by unblocked creatures is dealt to Weathered Bodyguards instead.
Morph {3}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
Weathered Bodyguards affects only combat damage from unblocked creatures. It won’t affect noncombat damage, and it won’t affect trample damage.