praise, extol, and honor

All three of these words have basically the same meaning and emphasize how greatly he praised God. (See: rc://en/ta/man/jit/figs-doublet)

who walk in their own pride

This phrase uses "walk" to refer to the person who acts proud. Alternate translation: "who are proud" (See: rc://en/ta/man/jit/figs-idiom)