Hebrews 11:3 KJV says, “Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear.” The plural “worlds” confuses me. Does it mean Heaven as a world as well as Earth?
Although the Genesis creation account is primarily about Earth and its atmosphere, God created much more that that.
The Greek word translated “worlds” in Hebrews 11:3 is “aion”. In English we pronounce it “eon”. In its singular form it can refer to either a world or a period of time, like an age. In Hebrews 11:3 it’s plural, so it can mean all the worlds in the universe, or all the ages of time that lead to and include eternity. Both definitions work here, because the writer’s point is that God began with nothing and created everything that ever was or ever will be, including time and space.