Christianity is not dualistic.
It’s not faith vs works An active faith leads one to do good works.
It’s not Law vs grace, but law with grace as grace can not exist with out Law.
It’s not flesh vs spirit. The flesh is not evil, but can be used by the spirit to do good or evil.
It’s not the Father vs the Son. The Father and Son are one. If you don’t worship the Son you don’t have the Father or the Son.