IF one believes in the Trinitarian doctrine, one has no choice but to agree with the atheist who rightly claims that if reality was designed, it was designed by a quarrelsome committee.

Most of the following is something I already typed for another post. It works well to explain and give definition. What I will add to address your post is this: First, I will address Jesus character in short with out deep biblical study. Isaiah 45:7 I form the light, and create darkness: I make peace, and create evil: I the Lord do all these things. In short, it is said that Jesus fulfilled the law and the prophets such as Isaiah therefore, Jesus is about or capable of creating evil.

Second: Morality in part (as explained below) is dependent upon rules/laws imposed upon someone and their ability or lack of ability to follow those rules/laws. The issue about this part of morality is that rules/laws can be arbitrary.
arbitrary

1. based on random choice or personal whim, rather than any reason or system.
   "his mealtimes were entirely arbitrary"

2. (of power or a ruling body) unrestrained and autocratic in the use of authority.
   "arbitrary rule by King and bishops has been made impossible"

With rules/laws being arbitrary this means that the fact of non-sense laws can affect the apparent morality level that a person has. I could argue that the traffic laws of a stop sign requiring a complete and total stop is at times not so necessary for a driver given some situations. However, in view of such a law, the law itself does not care if the stop sign is out in the country 20 miles from any other stop sign and only 5 cars a day drive down the road. A local farmer living near the stop sign and not coming to a total complete stop ever time makes for the farmer to have technically a lower level of morality because the farmer "rolls" thru the stop sign because he can see for miles either way to know that no cars are crossing the intersection.

In the United States stop signs and other traffic laws are considered misdemeanor criminal offenses punishable by fine. Most all those that have driven a vehicle long enough could very well be labelled as a criminal for the fact of violation of a simple traffic law.

Morality is defined as principles concerning the distinction between right and wrong or good and bad behavior.
Principle is defined as a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning. www.lexico.com
Moral comes from the Latin word mores, for habits. The moral of a story is supposed to teach you how to be a better person. If moral is used as an adjective, it means good, or ethical. If you have a strong moral character, you are a good member of society. If someone is a cheat and a liar, you might say, "She is not a moral person." [vocabulary.com]

Moral/morality is viewing the actions, activity, habits, etc. of a person and then comparing those to 2 different things.

1. First, those things are compared to standards, rules, or laws that establishes 'RIGHTS AND WRONGS".
   Example: The rules says: no chewing bubble gum while walking. Sue was seen chewing bubble gum while walking. Sue violated the rule. Sue would have low morals in view of the rule of "no chewing bubble gum while walking".
   OR
2. Second, those things are compared to good and bad (evil).
   Example: Sue walked while chewing bubble gum. While walking works out leg muscles it does not specifically work out facial muscles. Chewing gum gave the added benifit (good) for Sue to get her facial muscles worked out while walking. No one was harmed(suffered an evil) by the fact that Sue chewed bubble gum while walking. Sue would have high morals( good health habit) for chewing bubble gum while walking.
   Sue was immoral for violation of the rule but was moral in view of a health benefit.

etymology moral(adj):
mid-14c., "associated with or characterized by right behavior," also "associated with or concerning conduct or moral principles" (good or bad), from Old French moral (14c.) and directly from Latin moralis "proper behavior of a person in society," literally "pertaining to manners," coined by Cicero ("De Fato," II.i) to translate Greek ethikos (see ethics) from Latin mos (genitive moris) "one's disposition," in plural, "mores, customs, manners, morals," a word of uncertain origin. Perhaps sharing a PIE root with English mood (n.1).
From late 14c. as "of or pertaining to rules of right conduct" (opposed to non-moral, amoral) and "morally good, in accordance with rules of right conduct" (opposed to immoral). Of persons, "habitually conforming to moral rules," 1630s. From 1680s with reference to rights, duties, etc., "founded on morality" (opposed to legal).
Applied to indirect effect in moral support (1823), moral victory (1888), where the notion is "pertaining to or affecting the character or conduct" (as distinguished from the intellectual or physical nature), a sense attested from 1590s; in this sense, compare morale. Related: Morally.
moral(noun):
"moral exposition of a story, the doctrine inculcated by a fable or fiction, the practical lesson which anything is designed to teach," c. 1500, from moral (adj.) and from French moral and Medieval Latin moralia. In this sense, morality was used from late 14c. The earlier noun use of moral was "a commandment pertaining to morals."
[etymonline.com]

He didn't exist.