Ezekiel 23:11
And when her sister Aholibah saw this, she was more corrupt in her inordinate love than she, and in her whoredoms more than her sister in her whoredoms.
Cross-reference
Ezekiel 23:4 introduces Oholah and Oholibah as the two sisters, naming Samaria and Jerusalem — the context for Oholibah's greater corruption.
Ezekiel 16:47-51 declares Jerusalem more wicked than Samaria and even Sodom — the same comparison of Oholibah surpassing Oholah.
In Ezekiel 16:15, Jerusalem's initial unfaithfulness is described, setting the stage for her worse corruption in 23:11.
In Ezekiel 16:46, the sisters Samaria and Sodom are identified, clarifying the family metaphor in 23:11.
Jeremiah 3:8 says God divorced faithless Israel yet treacherous Judah did not learn — directly paralleling Oholibah seeing but worsening.
Jeremiah 3:6 recalls that faithless Israel committed adultery, yet Judah did not turn back — the same lesson Oholibah ignored.