1 Samuel 20:31

For {as long as} the son of Jesse [is] alive on the earth, you and your kingdom will not be established! So then, send and bring him to me, for {he will surely die}!"

1 Samuel 19:6

And Saul listened to the voice of Jonathan and swore, "{As Yahweh lives}, he will not be put to death!"

1 Samuel 19:11-15

Then Saul sent messengers to David's house to guard him and to kill him in the morning, but Michal his wife told David, saying, "If {you do not save your life} tonight, [then] tomorrow you [will be] killed!"

1 Samuel 20:8

So you must show loyal love to your servant, for you have brought your servant into a covenant of Yahweh with you. But if there [is] guilt in me, [then] kill me yourself! But why should you bring me to your father?"

1 Samuel 26:16

This thing that you have done [is] not good. {As Yahweh lives}, {surely you people deserve to die} since you have not kept watch over your lord, over Yahweh's anointed one! So then, see where the king's spear [is] and the jar of water that [was] near his head!"

2 Samuel 19:28

For there [was no one] in all the house of my father {who were not doomed to death} before my lord the king, but you set your servant among those who eat at your table. Do I have any righteousness any longer except to cry out to the king?"

Psalm 79:11

Let the groaning of the prisoner come before you. According to the greatness of your {power}, spare [the] children [appointed to] death.

Treasury of Scripture Knowledge

Summary

For as long as the son of Jesse liveth upon the ground, thou shalt not be established, nor thy kingdom. Wherefore now send and fetch him unto me, for he shall surely die.

General references

Bible References

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1 Samuel 20:8
So you must show loyal love to your servant, for you have brought your servant into a covenant of Yahweh with you. But if there [is] guilt in me, [then] kill me yourself! But why should you bring me to your father?"
1 Samuel 19:6
And Saul listened to the voice of Jonathan and swore, "{As Yahweh lives}, he will not be put to death!"

General references

1 Samuel 14:39
For as Yahweh lives, who delivers Israel, [I swear] that even if it [is] in Jonathan my son, {he will certainly die}!" But nobody from all the army answered him.