'Materials' in the Bible

Then David the king rose to his feet and said, “Hear me, my brothers [in arms] and my people. I had intended to build a permanent home for the ark of the covenant of the Lord and as a footstool for our God, and I prepared materials for the building.

Then you counted the houses of JerusalemAnd you tore down the houses [to get materials] to fortify the city wall [by extending it].