1 Samuel 15:7 (KJV)
7 And Saul smote the Amalekites from Havilah until thou comest to Shur, that is over against Egypt. 8 And he took Agag the king of the Amalekites alive, and utterly destroyed all the people with the edge of the sword.
It would seem Saul did not kill all the Amalekites since later they attacked Israel & took their women, sons & daughters captive
1 Samuel 30:1-2 (KJV)
1 And it came to pass, when David and his men were come to Ziklag on the third day, that the Amalekites had invaded the south, and Ziklag, and smitten Ziklag, and burned it with fire; 2 And had taken the women captives, that were therein: they slew not any, either great or small, but carried them away, and went on their way
Did Saul here think he had utterly destroyed the Amalekites or he deliberately lied to Samuel?