Ecclesiastes 10:11
Surely the serpent will bite without enchantment; and a babbler is no better.
Cross-reference
Jeremiah 8:17
Allusion
Jeremiah 8:17 speaks of serpents that cannot be charmed and will bite, directly paralleling the situation of an uncharmed serpent biting.
James 3:8
Parallel
James 3:8 compares the untamed tongue to deadly poison, directly echoing the serpent's venom and the inability to control it.
Psalm 58:5
Allusion
Psalm 58:5 describes a deaf adder that refuses to hear the charmer, echoing the futility when the serpent bites before being charmed.