‘Thus the heavens and the earth were finished and all the host of them.'
This use of the word ‘host' is unusual. Here it signifies the totality of creation, including sun, moon and stars, the different types of vegetation, fish, creatures and animals, and man, everything contained therein. Nothing remains unfinished. Every part has its place and it is completed to the last dot.
Note that ‘the heavens and the earth' refers back to verse Genesis 1:1. Thus what has been described is the detail of the fulfilment of that verse. This would seem to confirm that ‘heavens' in Genesis 1:1 primarily meant the material heavens