1 Samuel 20:16

So Jonathan, &c. (1) The E. V. treats this as a remark of the historian: and apparently understands Jonathan's words "Let the Lord, &c." to mean "Let the Lord exact vengeance from David by the hand of his enemies if he fails to fulfil the covenant." But this involves an unusual construction. We should expect, "Let the Lord require it at the hand of David," if he fails to fulfil the covenant (cp. Deuteronomy 23:21): and possibly "David's enemies" is an euphemism for "David," substituted by a scribe in later times. Cp. note on 1 Samuel 25:22. (2) The Sept. points to a text making the whole of 1 Samuel 20:16 part of Jonathan's speech: "And when the Lord hath cut off, &c. let not the name of Jonathan be cut off from the house of David, and may the Lord take vengeance on the enemies of David."