Joshua 9:19

Overview - Joshua 9
The kings combine against Israel.
The Gibeonites by craft obtain a league.
22 They are condemned to perpetual bondage.
Treasury of Scripture Knowledge

Joshua 9:19  (King James Version)
But all the princes said unto all the congregation, We have sworn unto them by the LORD God of Israel: now therefore we may not touch them.

We have
20 ; Ecclesiastes 8:2 ; 9:2 Jeremiah 4:2