@Mnutu (easier to reply this way due to time limit.) I will be honest I have not finished reading the entire bible yet. There is no good excuse for this, but I am a younger man that works a lot and I am imperfect I never said I was some days I don't even pray and I should. Also when I do read the bible I get hung up on things like if God names 40 families it is very significant. If God repeats things like
groves and high places or other things it is also significant. I find myself wanting to know more to an autistic level even at times I will start to translate languages back and forth and see what comes out. There is a name in Enoch I for instance that was also in the old testament, yet censored out. I will devote sadly sometimes more time to get to the bottom of a mystery presented to me, but find more satisfaction, gratitude, and understanding. I do however lack anyone to talk to non anonymously though about anything that I may want to ask a mentor or a fellow about because asking IRL could get me de jobbed de banked.
That being said I will explain what these mean to me and while I am not SNM it is just closest to me personally.
For the Corinthians: I take it as that it may not exactly matter the vehicle in which the word is spread. Only that the word is spread is what is more important. (Its never been an elitist thing for me or anything like that I'm not diagnosed autistic, but sometimes I think I am lol even if it doesn't matter I like to know if possible.)
For Hebrews: I am glad you shared this with me because I have not yet read this entire book in the Bible yet. I had actually somewhat discussed something similar with a mentor and he laughed at my concern and said something like this. That the old laws are I wouldn't say null and void, but not so heavy a cost for forgiveness and salvation. (Another note here only because you asked and I don't want to go full power level unless I am asked. When reading what I have and studying other findings I have become sickened by all of these holidays [holy days] that I have been tricked into participating my whole life and had decided that to live a life that is living for God personally only passover and the days that people die should be the only holidays observed. I am not perfect, but that should be the goal.)
For the Jeremiah: chapter and verse are mixed it is totally cool I wish I could pull verses from my head, but I am not there yet

. I also had to grab a little more context to understand or try to. ( I am Khazaria-pilled. While I have my own bias on a tribe I am much more kind to actual semetic peoples hence some of my thoughts on Islam and the like. This being said that I don't interpret modern nations to what is said biblically unless it is unmistakable [jericho]) I interpret the nation of Israel biblically to being the actual semetic tribes peoples and their descendants. As far ar rebuilding the city I can not say for sure if it is meaning in this trial life here now, (it certainly is not looking that way now.) or post judgement in the New Jerusalem with streets of gold and jewels, but I want to say the latter. As far as the days are coming I am sure that they are coming, but what God says for times in the Bible does not always necessarily mean the lifetime of someone that has read the Bible in their lifetime.
I saw this thread the other day and hopped in on topic that was going, but sometimes talking with others of faith really helps with things I still have to read my own and everything, but its nice to get other POVs as well for me.
I also think one of the chapters in the book of Amos has imprinted on me for my curiousities Amos 8.