Verses with the word stumblingblock in the Apocrypha (2 verses):

Sirach 7:6
Seek not to be judge, being not able to take away iniquity; lest at any time thou fear the person of the mighty, an stumblingblock in the way of thy uprightness.

Sirach 31:7
It is a stumblingblock unto them that sacrifice unto it, and every fool shall be taken therewith.