I am trying to understand atheists better. And How they justify laws of logic, uniformity of nature, and morality.

How do we know anything is true? Eventually, we must appeal to an ultimate standard, Eventually we get to the top of the staircase so to speak. "Every philosophical system must start with presuppositions—starting points or assumptions— that cannot be proven from anything more basic, but are accepted up–front as the foundation for all subsequent reasoning." ~Mike Matthews ~"The Bible claims to be this ultimate standard of truth, the “Word” given by the Almighty Creator God (see “2. Claims of Divine Authorship,” pp. 56–57). Most people point to one of three standards: their own personal opinion, public consensus, or great moral literature. But that is not an option if the Bible is true.

An appeal to any other standard, such as the opinions of people, automatically means you must reject the Bible as your ultimate standard." "ince we must appeal to some ultimate standard, the next question is how to determine the right one.

One—and only one—logical solution is available. The standard itself must be “self-attesting” and “self-authenticating.” In other words, it must speak for itself and defend itself in such a way that it (1) passes all its own standards of truth and (2) gives a foundation for successfully interpreting all other claims to truth.

Even before modern logicians recognized this limitation to every logical argument, God’s Word had already acknowledged and solved it.

Jesus Christ, as the Son of God, said, “I am the truth” (John 14:6) and “God’s word is truth” (John 17:17). Jesus claimed to define what truth is, and He said God’s Word is the ultimate judge of truth (John 12:48). No truth exists apart from Him. As the Bible explains it, “In him are hidden all the treasures of wisdom and knowledge” (Colossians 2:3). So the Bible clearly claims an exalted position as the ultimate authority.

Moreover, God’s Word concludes that all other standards outside of Christ must be “empty” because they depend on “the tradition of men, according to the basic principles of the world, and not according to Christ” (Colossians 2:8). For the Bible to appeal to any other authority would be to deny its own place as the ultimate standard.""As it turns out, the only ultimate standard that can be logically self-authenticating is one that exactly matches the unique God of Scripture, who is true, holy, just, eternal, unchanging, and “cannot lie” (Titus 1:2). He alone provides a solid foundation for knowledge and attests to His own truthfulness" Of course, if you want to believe the Bible and say that Batman is another name for God, I will point you to the Bible, showing you that there is no reasonable basis for believing that Batman is another name for God.