The abstract noun "faithfulness" can be stated as "faithfully." Alternate translation: "After Hezekiah faithfully did all the things Yahweh commanded him to do" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])
Here Sennacherib represents his army. Alternate translation: "Sennacherib, king of Assyria, and his army came ... They camped" (See: [[rc://en/ta/man/translate/figs-synecdoche]])