Lamentations 3:39

The E.VV., making the whole line to be a question, are more in consonance with the construction of the two earlier members of the group, than is the other proposed rendering, viz. Of what should a living man complain? Each(should complain) of his sins. In that case we should require mournrather than "complain."

living i.e. why should a man murmur at misfortunes, when they are due to him for his sin?

a man … his sins mg. (less well) a man that is in his sins.