2 Samuel 21:2

2So the king called the Gibeonites and spoke to them. Now the Gibeonites were not of the people of Israel but aof the remnant of the Amorites. Although the people of Israel had sworn to spare them, Saul had sought to strike them down in his zeal for the people of Israel and Judah.

Ezekiel 17:18-19

18He despised the oath in breaking the covenant, and behold, he gave his hand and did all these things; he shall not escape. 19Therefore thus says the Lord God: As I live, surely it is my oath that he despised, and my covenant that he broke. I will return it upon his head.
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