Right at the very first verse of the Bible we see a phenomenon that separates the KJB from virtually all modern versions. The KJB translates shamayim as heaven and every modern version I could find renders it heavens.
The Hebrew word is a “plural of majesty“, meaning it is a plural word intended to be used in the singular. For example, the queen might say, “We are famished.”, even though she is referring only to herself. Being royalty, she refers to herself with a plural. I suppose if the queen is royalty enough to use the term as a “majestic plural”, so is God when He speaks of His creation. There are other Bible words used the same way, such as Elohim, one of the Hebrew words for God.
The other reason the KJB is correct is that, in the initial creation, God make one heaven and the rest of Genesis chapter 1 describes how He subsequently divided it into two heavens. One where the birds fly and the other where the sun, moon, and stars are. Later we learn the throne of God is in the “third heaven”.
Thus, from the very first verse, we see the King James Bible is different than all the rest – and correctly so.
There is also another issue in Genesis 1:1 between the KJB and several modern versions
(KJB) Gen 1:1 In the beginning God created the heaven and the earth.
(ALL but Douay) … heavenS
NRSV: In the beginning when God created the heavens and the earth.
ComEB: When God began to create the heavens and the earth
GNB: In the beginning, when God created the universe
Young: In the beginning of God’s preparing the heavens and the earth
These modern versions are worded much more nebulously. They do not necessarily point back to the same “beginning” of the creation week where Adam and Eve were created (Matt 19:4, Mark 10:6). Adding “when” makes is possible for this to be a different beginning than the one in Mark 10:6. Putting “when” at the beginning, like the CEB version does, allows the creation to occur at anytime, not necessarily in the beginning at all. That could allow billions of years to exist before this creation. Adding “of” does the same thing. Which readings would evolutionists prefer?
Mark 10:6 But from the beginning of the creation God made them male and female.
Matt 19:4 And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female,