Numbers 31:49

and they said to him, “Your servants have counted the warriors under our command, and not one man of us is missing.

So David recovered all that the Amalekites had taken, and rescued his two wives.

He will redeem their life from oppression and fraud and violence,
And their blood will be precious in His sight.

This was to fulfill and verify the words He had spoken, “Of those whom You have given Me, I have not lost even one.”

Treasury of Scripture Knowledge

And they said unto Moses, Thy servants have taken the sum of the men of war which are under our charge, and there lacketh not one man of us.

So David recovered all that the Amalekites had taken, and rescued his two wives.

He will redeem their life from oppression and fraud and violence,
And their blood will be precious in His sight.

This was to fulfill and verify the words He had spoken, “Of those whom You have given Me, I have not lost even one.”

Nothing of theirs was missing whether small or great, sons or daughters, spoil or anything that had been taken; David recovered it all.