MindArchon, I am glad to see someone actually site some biblical references, however most of these are Old Testament passages. Yeah, I do agree with you that some of the Old Testament stuff is kinda weird, but many of these customs, laws, and traditions were abolished under the New Covenant with Jesus in the New Testament (this is actually what led to Jesus being persecuted by the Jews, their Old Testament doctrines conflicting with the practices and laws he set into place). A good example of this is the customary animal sacrifices which were replaced by the body of Christ. It is incorrect to interpret everything in the Old Testament as things that are still in effect (some thing still are). Also, you are correct in saying the Bible was written by people, however, it was written by God through people.
Another thing I noticed is you also misinterpreted some of these passages and/or set them as absolutes even though many of them are not. An example of this is Galatians 5:21 (I'll use this since it's actually New Testament). Let's start from verse 19 since that's actually the beginning of sentence.
"Now the works of the flesh are evident, which are: adultery, fornication, unclenness, lewdness, idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, [Verse 21] envy, murders, drukenness, revelries, and all the like; of which I tell you beforehand, just as I also told you in time past, that those who practice such things will not inherit the kingdom of God." Galatians 5:19-21 NKJVThe key word in this passage by Paul is "practice" which means a continual, habitual action. A continual practice of these things without repetance will lead to separation from God's kingdom. (Kind of a bit different from
"If you have ever been drunk you are going to hell" wouldn't you agree?)
Now that's just one example I looked up, doing every one of these verses would be very difficult due to time and knowledge. I will admit that I probably could not answer all of these but not all questions we may have are answered in the Bible, only the ones we need to know. Part of faith comes from knowing this.
Miracle speaking, miracles aren't as necessary now after Christ's resurrection, quite humorous how some people think its a MUST to see a miracle to believe (see Luke 11:29), and by the way, how did that SCIENCE comparison get in there? I could have stuck in any random concept of exponential growth over time just for senselessness if I wanted to also (humans, technology, microorganisms, inhabited land, etc.). Would this happen to be in reference to the scientific method by any chance?
In response to your signatures, the "for some reason" can be found in Numbers 4:15. Also I suggest you read up on levirate marriages (an Old Testament custom by the way)