Yes, it's reliable, but not in the sense of a literal reading.
Biblical literalists are using a physical crutch and miss the spirit of scripture.
Those who have had experience with miracles know that the lag between asking and receiving is zero. Of course, since we live in a physical universe, the receiving can be spread over several moments or more, but it starts instantly.
Genesis 1 was God's "asking." God's "day of rest" was the receiving and this receiving has been ongoing for more than 13.7 billion years. Genesis 1 took place in zero time -- outside of time.
2 Cor. 3:6 warns us not to depend on the literal, but to dig for the spirit of scripture. When you expect to find hidden wisdom, it evokes the Holy Spirit and puts a damper on ego (that which clamors to be "first").
The first few chapters of the Bible are more thematic than sequential.
Take Genesis 2-3, for instance. The Garden was a spiritual place, not a physical one. Homo sapiens was created as a result of the need to rescue God's lost children and they became lost at the end of Genesis 3.
The Bible also makes it clear that the crimes of the guilty shall only be paid by the guilty (Ezekiel 18:18–20). And yet we are told repeatedly that we are burdened by the sins of Adam and Eve. Conflict? Not at all when you realize that Adam and Eve are purely symbols for all of God's lost children -- and that means you, me and all the rest of us. That was us in the Garden. We did the crime and we're paying the time. When we take 100% responsibility with humility, love and fearless confidence in the Lord, then we can be free of the burden of ego. This is what following Christ is all about.
The entire Bible is all about a Rescue Mission. If you understand the Bible's creation story through spirit, then miracles become easy. And that's a reliability that counts more than anything else.