Sigh. You really don't understand the concept of context, do you? In Romans 3:7, Paul is not saying that he is writing lies. He is contrasting his own sinfulness (using himself as a representative of all mankind) with the righteousness of God. In verse 4, he said, "Let God be true, though every man a liar." He has spent the first two chapters of the book, first building the case that the Gentiles are sinners, then turning it right back on the Jews, showing that they are sinners and deserving of God's wrath every bit as much as the Gentiles are. At the beginning of chapter 3, he is making the case that the faithlessness of God's chosen people does not negate His faithfulness toward them. He is anticipating the objection that if our unrighteousness demonstrates the righteousness of God by way of contrast, should we not sin even more so that God is glorified? And why does He judge us if that is the case? Verse 7 is part of his answer. Is Paul a liar? Sure, just like you are and I am. We are all sinners - that is Paul's point. To atomize verse 7 and try to turn it into a confession that Paul is writing untruth is a blatant and disingenuous abuse of the text.
Now, it's true that the chapter divisions were not part of the original text, and the context should be considered without reliance on the chapter and verse designations. However, the people who made the chapter divisions weren't idiots. They recognized where changes in thought occurred in the text and placed the divisions accordingly. I Romans 5, Paul is writing about physical death that resulted from Adam's fall. As chapter 6 begins, Paul starts to talk about 'death to sin.' Clearly, this is something different than the death that results from sin. Dying with Christ is a death to sin in that one gains new life in Christ. The "old man" is put to death and the "new man" is brought to life. This is the death that Paul refers to in verse 7 as setting us free from sin, not physical death.
If you want to attack the Bible, that's up to you, but you could at least attack it on the grounds of what the text actually says. Your practice of isolating a verse and ignoring its context (which you have now done twice so far in this thread) is not an honest or effective way of making your point.