We have sworn # 06_JOS_09_19 # 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 sworn # 09_1SA_20_42 # And Jonathan said to David, Go in peace, forasmuch as we have sworn both of us in the name of the LORD, saying, The LORD be between me and thee, and between my seed and thy seed for ever. And he arose and departed: and Jonathan went into the city. 
we have sworn # 07_JUD_21_07 # How shall we do for wives for them that remain, seeing we have sworn by the LORD that we will not give them of our daughters to wives?