Abortion is murder, it should be completely illegal because murder is illegal. What's the confusion?

I have already pointed out to you that "murder" is a legal term. In response, you said that you "follow a law higher than the law of the land." You are free to follow whatever "higher law" you wish, but don't equivocate between your "higher law" and America's system of laws. In other words, in this discussion, you must choose a definition of "murder" that derives either from (1) your "higher law" or (2) that of America's legal system - you can't jump back and forth between the two to make your points. THAT'S the source of the confusion.

For example, you confuse the two "law systems" in your second sentence. You say "Wanting laws (American legal system) to regulate abortion but not make it illegal is lawlessness in a Christian context (your "higher law") because it goes against God's law (again, your "higher law"). If you are going to discuss the "law" pick one context - either the American legal system OR your "higher law" - and stick with it. When you equivocate back and forth, you make it look as if you don't know what you are talking about.

because it goes against God's law, and the law of the land even if lawmakers missed this fact in Roe v Wade.

The U.S. Supreme Court did act as lawmakers (or better said, law repealers) when it rendered Roe v. Wade. But Roe v. Wade created "law of the land." So your statement that the U.S. Supreme Court missed the fact of the "law of the land" when they rendered Roe v. Wade makes no sense because the U.S. Supreme Court creates the law of the land. How could they "miss" what they "create"?