God created the universe.
See Genesis. That is my understanding. Or do you believe God was created by Sophia, for example?
You are correct in your understanding. These are your verses...
Isaiah
45:5 I [am] the LORD, and [there is] none else, [there is] no God beside me: I girded thee, though thou hast not known me:
45:6 That they may know from the rising of the sun, and from the west, that [there is] none beside me. I [am] the LORD, and [there is] none else.
45:7
I form the light, and create darkness: I make peace, and create evil: I the LORD do all these [things].
45:8 Drop down, ye heavens, from above, and let the skies pour down righteousness: let the earth open, and let them bring forth salvation, and let righteousness spring up together; I the LORD have created it.
45:9 Woe unto him that striveth with his Maker! [Let] the potsherd [strive] with the potsherds of the earth. Shall the clay say to him that fashioneth it, What makest thou? or thy work, He hath no hands?
45:10 Woe unto him that saith unto [his] father, What begettest thou? or to the woman, What hast thou brought forth?
45:11 Thus saith the LORD, the Holy One of Israel, and his Maker, Ask me of things to come concerning my sons, and concerning the work of my hands command ye me.
45:12 I have made the earth, and created man upon it: I, [even] my hands, have stretched out the heavens, and all their host have I commanded.
45:13 I have raised him up in righteousness, and I will direct all his ways: he shall build my city, and he shall let go my captives, not for price nor reward, saith the LORD of hosts.
45:14 Thus saith the LORD, The labour of Egypt, and merchandise of Ethiopia and of the Sabeans, men of stature, shall come over unto thee, and they shall be thine: they shall come after thee; in chains they shall come over, and they shall fall down unto thee, they shall make supplication unto thee, [saying], Surely God [is] in thee; and [there is] none else, [there is] no God.
45:15 Verily thou [art] a God that hidest thyself, O God of Israel, the Saviour.
45:16 They shall be ashamed, and also confounded, all of them: they shall go to confusion together [that are] makers of idols.
45:17 [But] Israel shall be saved in the LORD with an everlasting salvation: ye shall not be ashamed nor confounded world without end.
45:18 For thus saith the LORD that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I [am] the LORD; and [there is] none else.
45:19 I have not spoken in secret, in a dark place of the earth: I said not unto the seed of Jacob, Seek ye me in vain: I the LORD speak righteousness, I declare things that are right.
Just keep in mind that God Himself is of light and goodness. God is love. Their is no contradiction. This is another way of describing God's omnipotence (all powerfulness.) Another term for this is "sovereignty".