Even before the creation of this world; and all the wonders of our universe: God has been a creator.
He created the angels before He created Adam and Eve:
Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.
Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee
Ezekiel 28:13, 15
Here we see that Lucifer, the highest angel in heaven before his fall, was created: thus all the other angels also.
But God continued His work of creation as we read in Genesis, where we see that God ...