English Art/Literary Idioms / Maxims / Sayings Local confection

We have a saying in Greek taken from Virgil’s Aeneid (ii,410), and specifically the phrase “telis nostrorum obruimur”.

In my translation by James Rhoades it says: “Here first from the high temple *o’erwhelmed / With friendly darts*, most piteous slaughter falls / Upon us...”

In the John Dryden translation we have: “We from our friends receiv'd this fatal blow.”

In Matthew (10:36), there is something similar: “And a man’s foes will be those of his own household”.

The Greek saying “Ex oikeion ta veli”, literally “from our own (friends come) the arrows”, is quite common, though few are familiar with its provenance. It is usually used on its own to mean that the attacks come from the allies of the person concerned. It could very well be the title of a news story.

Greek dictionaries have rather weak glosses, ‘shots from our own side’ or ‘enmity within our intimate circle’. The closest English phrase I can think of is “stabbed in the back by one’s own friends / allies”, but it may be a bit strong. Another one is “stung by one’s own people”.

Is anyone familiar with a similar phrase, short and sweet and common, that would correspond to this? Thanks in advance for any help. I’ll go and lose some sleep over it now.