Nothing exists except as a concept in the mind of God; that is true for every atom, every electron, every galaxy, and every baby, and even you and me.
A few verses I found by searching for the phrase "all things:"
John 1:3
3 All things came into being through Him, and apart from Him nothing came into being that has come into being.
NASU
Acts 17:24-26
24 "The God who made the world and all things in it, since He is Lord of heaven and earth, does not dwell in temples made with hands;
25 nor is He served by human hands, as though He needed anything, since He Himself gives to all people life and breath and all things;
26 and He made from one man every nation of mankind to live on all the face of the earth, having determined their appointed times and the boundaries of their habitation,
NASU
1 Cor 8:6
6 yet for us there is but one God, the Father, from whom are all things and we exist for Him; and one Lord, Jesus Christ, by whom are all things, and we exist through Him.
NASU
1 Cor 11:12
12 For as the woman originates from the man, so also the man has his birth through the woman; and all things originate from God.
NASU
Col 1:16
16 For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities -- all things have been created through Him and for Him.
NASU
Heb 1:3
3 And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power.
NASU
Rev 4:11
11 "Worthy are You, our Lord and our God, to receive glory and honor and power; for You created all things, and because of Your will they existed, and were created."
NASU