Colossians 1:16-19
For it was in Him that all things were created, in heaven and on earth, things seen and things unseen, whether thrones, dominions, rulers, or authorities; all things were created and exist through Him [by His service, intervention] and in and for Him. And He Himself existed before all things, and in Him all things consist (cohere, are held together).
So God is the creator of all things and in Him all things are sustained and held together.
… and this is how He did so:
Genesis 1:9
Then God said, “Let the waters under the heavens be gathered together into one place, and let the dry land appear”; and it was so.
Psalm 33:6-9
By the word of the Lord the heavens were made,
And all the host of them by the breath of His mouth.
He gathers the waters of the sea together as a heap;
He lays up the deep in storehouses.
He gathers the waters of the sea together as a heap;
He lays up the deep in storehouses.
Let all the earth fear the Lord;
Let all the inhabitants of the world stand in awe of Him.
For He spoke, and it was done;
He commanded, and it stood fast.
Let all the inhabitants of the world stand in awe of Him.
For He spoke, and it was done;
He commanded, and it stood fast.
Hebrews 11:3
By faith we understand that the worlds were framed by the word of God, so that the things which are seen were not made of things which are visible.
Hebrews 1:3
who being the brightness of His glory and the express image of His person, and upholding all things by the word of His power, when He had by Himself purged our sins, sat down at the right hand of the Majesty on high.