Nevertheless, I will venture my own understanding of the Genesis account:
1. Every verse in Genesis Ch. 1 begins with the conjunction "And," waw in Hebrew. With this in mind, each section signifies a sequential and chronological connection to the previous.
2. "Now the earth was..." Gap theorists call for a retranslation of "was," supposing that it should be "became." But this retranslation is not necessary at all. "Was" is from a verb that signifies being, so "was" stands as it is as in every conservative version of the Bible.
3. "Without form and void," is the Hebrew tohu waw bohu. Like just about every word tohu has various shades of meaning, "vanity, confusion, noting, empty place." Again, context would have to decide on the meaning here of tohu and in this case, "emptiness" is the best rendering.
4. A perfect God created the raw material, which is described as "without form and void" and called into being what he wanted.
5. To suggest that a perfect God cannot create raw material and then work from there, is to presume to know more about God than what is revealed. God is God and can do whatever he wants to do. No human dare attempt to stay the hands of God.
6. The Genesis account of creation is just want the Creator order. Many have ventured the gap theory, but that is not necessary, not even from grammar or the rest of Scripture.
7. To suggest that the gap theory is the only explanation of Gen 1:1 and 2 is to dismiss the scholarship of many who have argued for the opposite, as futile.