Give to the hungry some of your bread, and to the naked some of your clothing. Whatever you have left over, give away as alms; and do not begrudge the alms you give. Be lavish with your bread and wine at the burial of the virtuous, but do not share them with sinners. "Seek counsel from every wise man, and do not think lightly of any advice that can be useful. At all times bless the Lord God, and ask him to make all your paths straight and to grant success to all your endeavors and plans. For no pagan nation possesses good counsel, but the Lord himself gives all good things. If the Lord chooses, he raises a man up; but if he should decide otherwise, he casts him down to the deepest recesses of the nether world. So now, my son, keep in mind my commandments, and never let them be erased from your heart. (Tobit 4:16-19)

Do not begrudge the alms you give... but do not share them with sinners. Is this how Tobit would want to be treated?

Seek counsel from every wise man and do not think lightly of any advice that can be useful... no pagan nation possesses good counsel.

There are unresolved tensions, perhaps even contradiction in Tobit's "commandments."

Will following the straight path result in success or is God capricious, raising up or casting down as it pleases? Is there yet another understanding?

I am sympathetic to Tobit. But I am beginning to wonder if Tobit's blindness is more than physical.