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

Wisdom of Solomon 14:11
Therefore even upon the idols of the Gentiles shall there be a visitation: because in the creature of God they are become an abomination, and stumblingblocks to the souls of men, and a snare to the feet of the unwise.

Sirach 39:24
As his ways are plain unto the holy; so are they stumblingblocks unto the wicked.