Joshua 9:18

And the children of Israel smote them not, because the princes of the congregation had sworn unto them by the Lord God of Israel, namely, to spare their lives, and they felt themselves bound in conscience, by their reverence of the oath in itself, Leviticus 19:12, although, strictly speaking, the condition of the ambassadors' having come from a distant country was attached to the oath and rendered it invalid. and all the congregation murmured against the princes.