Actually calling religions as cults isn't an insult according to the Oxford English Dictionary which is an academic source used by academics, scholars, students etc. Religion according to their definition is a cult. Period. You can't argue with academics.

Also it is called the Law of Agape by several scholars. Hell, Jesus says in the places that I mentioned that Love God is the greastest commandment. The second greatest commandment is love your neighbor. The word commandment as we understand in the OT refers to laws. These are laws that were given to use through Moses by God. In a similar sense these are laws given to us by Jesus who is the son of God, YHVH. We are supposed to follow these laws.

When a professor or a teacher tells his or her students to study it's not because it's neccessary, but because it's a rule if you want to pass and succeed. Jesus isnt telling us because it's neccessary to love your neighbor but because this is his law, summerizing the 10 commandments. So if you go against his law, you go against God.

For future reference I'm an eclectic neo-pagan. The only laws and rules I am bound to are the ones I make for myself.

Another edit: The problem with Merriam Webster is that its definitions are what are deemed popular by societies standards. I would recommend you get the Oxford English Dictionary as it is an academic source and much more accurate.