1 Samuel 20:15

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.

Cross-reference

In 1 Sam 20:23, Jonathan reiterates the covenant: 'the LORD is between you and me forever'—reinforcing the commitment made in 20:15.

In 1 Sam 24:21, Saul echoes Jonathan’s request, asking David to swear not to cut off his descendants—showing the same plea for mercy.

2 Samuel 9:1–7 Prophetic fulfillment

In 2 Sam 9:1-7, David fulfills Jonathan’s request by seeking out Mephibosheth and restoring Saul’s land, showing covenant faithfulness.

2 Samuel 21:7 Prophetic fulfillment

In 2 Sam 21:7, David spares Mephibosheth because of the oath to Jonathan, directly honoring the covenant from 1 Sam 20:15.