What does 1 Samuel 20:15 mean?

but also thou shalt not cut off thy kindness from my house for ever; no, not when Jehovah hath cut off the enemies of David every one from the face of the earth.

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.

but also thou shalt not cut off thy kindness from my house for ever; no, not when Jehovah hath cut off the enemies of David every one from the face of the earth.

And let not your mercy ever be cut off from my family, even when the Lord has sent destruction on all David's haters, cutting them off from the face of the earth.

but thou dost not cut off thy kindness from my house unto the age, nor in Jehovah's cutting off the enemies of David, each one from off the face of the ground.'

Thou shalt not take away thy kindness from my house for ever, when the Lord shall have rooted out the enemies of David, every one of them from the earth, may he take away Jonathan from his house, and may the Lord require it at the hands of David's enemies.

but thou shalt not cut off thy kindness from my house for ever, no, not when Jehovah cuts off the enemies of David, every one from the face of the earth.