Here "the eyes of Yahweh" refers to his sight, and his sight refers to his judgment. Alternate translation: "Amaziah did many things that pleased Yahweh, but he did not do as many things that pleased Yahweh as King David had done" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Joash obeyed Yahweh and did good things. This can be made explicit. Alternate translation: "He did the same good things that his father Joash had done" (See: [[rc://en/ta/man/translate/figs-explicit]])