The difference between Moralize and Sermonize

Moralize as a verb (intransitive):

To make moral reflections (on, upon, about or over something); to regard acts and events as involving a moral.

Moralize as a verb (transitive):

To say (something) expressing a moral reflection or judgment.

Moralize as a verb (transitive):

To render moral; to correct the morals of; to give the appearance of morality to.

Moralize as a verb (transitive):

To give a moral quality to; to affect the moral quality of, either for better or worse.

Moralize as a verb (transitive, obsolete):

To apply to a moral purpose; to explain in a moral sense; to draw a moral from.

Moralize as a verb (transitive, obsolete):

To supply with moral lessons, teachings, or examples; to lend a moral to.

Sermonize as a verb (intransitive):

To speak in the manner of a sermon; to preach; to propagate one's morality or opinions with speech.

Sermonize as a verb (transitive):

To preach a sermon to (somebody); to give (somebody) instruction or admonishment on the basis of one's morality or opinions.

Sermonize as a verb (transitive):

To say in the manner of a sermon or lecture.

Sermonize as a verb (intransitive):

To inculcate rigid rules.