Zephaniah 2:8
"I have heard the reproach of Moab, and the revilings of the children of Ammon, whereby they have reproached my people, and magnified themselves against their border."
Cross References (ranked by relevance)
Jeremiah 49:1
Concerning the Ammonites, thus saith the LORD; Hath Israel no sons? hath he no heir? why then doth their king inherit Gad, and his people dwell in his cities?
Amos 1:13
Thus saith the LORD; For three transgressions of the children of Ammon, and for four, I will not turn away the punishment thereof; because they have ripped up the women with child of Gilead, that they might enlarge their border:
Ezekiel 36:2
Thus saith the Lord GOD; Because the enemy hath said against you, Aha, even the ancient high places are ours in possession: