“But also thou shalt not cut off thy kindness from my house for ever: no, not when the LORD hath cut off the enemies of David every one from the face of the earth.”
King James Version (KJV)
20:14 Kindness as the Lord - That kindness to which thou hast engaged thyself, in the covenant sworn between thee and me in God's presence. I die not - That thou do not kill me or mine, as princes of another line use to kill the nearest relations of the former line, from whom the kingdom was translated to them.
20:16 A covenant - The covenant which before was personal, he now extends to the whole house of David, expecting a reciprocal enlargement of it on David's side, which doubtless he obtained. Enemies - If either I or any of my house shall break this covenant, and shall prove enemies to David or to his house, let the Lord, the witness of this covenant, severely punish the violators of it.
20:17 Swear again - Heb. and Jonathan added or proceeded to make David swear; that is, having himself sworn to David or adjured David, in the foregoing verse, he here requires David's oath to him, by way of restipulation or confirmation. Loved him - Because he had a true friendship for David, he desired that the covenant might be inviolably observed through all their generations.