Let not your mercy ever be cut off from my family, even when you send destruction on all your haters Lord

The mercy of God is forever

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.
1 Samuel 20:15

1)Joh 10:27 My sheep give ear to my voice, and I have knowledge of them, and they come after me:
Joh 10:28 And I give them eternal life; they will never come to destruction, and no one will ever take them out of my hand.
2)Rom 8:32 He who did not keep back his only Son, but gave him up for us all, will he not with him freely give us all things?
Rom 8:33 Who will say anything against the saints of God? It is God who makes us clear from evil;
Rom 8:34 Who will give a decision against us? It is Christ Jesus who not only was put to death, but came again from the dead, who is now at the right hand of God, taking our part.
Rom 8:35 Who will come between us and the love of Christ? Will trouble, or pain, or cruel acts, or the need of food or of clothing, or danger, or the sword?
Rom 8:36 As it is said in the holy Writings, Because of you we are put to death every day; we are like sheep ready for destruction.
Rom 8:37 But we are able to overcome all these things and more through his love.
Rom 8:38 For I am certain that not death, or life, or angels, or rulers, or things present, or things to come, or powers,
Rom 8:39 Or things on high, or things under the earth, or anything which is made, will be able to come between us and the love of God which is in Christ Jesus our Lord.

References
1Joh 10:27 My sheep give ear to my voice, and I have knowledge of them, and they come after me:
Joh 10:28 And I give them eternal life; they will never come to destruction, and no one will ever take them out of my hand.
2Rom 8:32 He who did not keep back his only Son, but gave him up for us all, will he not with him freely give us all things?
Rom 8:33 Who will say anything against the saints of God? It is God who makes us clear from evil;
Rom 8:34 Who will give a decision against us? It is Christ Jesus who not only was put to death, but came again from the dead, who is now at the right hand of God, taking our part.
Rom 8:35 Who will come between us and the love of Christ? Will trouble, or pain, or cruel acts, or the need of food or of clothing, or danger, or the sword?
Rom 8:36 As it is said in the holy Writings, Because of you we are put to death every day; we are like sheep ready for destruction.
Rom 8:37 But we are able to overcome all these things and more through his love.
Rom 8:38 For I am certain that not death, or life, or angels, or rulers, or things present, or things to come, or powers,
Rom 8:39 Or things on high, or things under the earth, or anything which is made, will be able to come between us and the love of God which is in Christ Jesus our Lord.