5 I am the LORD, and there is no other; besides Me there is no god: I will strengthen you although you have not known Me.
6 In order that they know, from the shining of the sun and from the west, that there is no one besides Me; I am the LORD and there is no other.
7 Who forms light and creates darkness, Who makes peace and creates evil; I Am the LORD, Who makes all these.

Commentary:

The only Biblical passage that attests to the complete Omnipotence of GOD, creator of all things, He who forms both good and evil. This passage has created much confusion in theologians and in the different interpretations of the doctrines of any era, asking why a GOD so infinitely good, and a GOD of love (Deuteronomy 7, 9; Ezekiel 18, 32; Psalm 86, 15; Proverbs 3, 12; Zephaniah 3, 17), he had to create  evil that so greatly afflicts men from Genesis.

Who forms [yatsar, plasmare] light [or] and creates [barah, create] darkness [choshek] Who makes [asah, realizzo, stabilisco] peace [shalom] creates [barah, create] evil [rah] I Am the LORD, Who makes [asah, realizzo, stabilisco] all these
(Isaiah 45, 7)

GOD is the CREATOR, the author of every good thing, but also of what we consider evil, and in the Text of Isaiah, He in fact claims to also create darkness and evil (often translated also with adversity). In the original Hebrew text for “evil” uses the word רָע (rah) which can indicate either natural or moral evil, and both adversity and affliction, the prophet Isaiah is therefore confronting opposing elements (light/darkness, and good-peace/evil-affliction). Here isn’t put in opposition justice and injustice, this “evil” as as punishment, or a consequence for a certain wrong actions.
In the first 2 Chapters of Genesis, in which the whole of Creation takes place, there is absolutely no trace of evil, but this is only found starting from the third chapter, or rather after the disobedience of Adam and Eve. The consequence that follows from sin is therefore death (“because you are dust and you will return to dust”) and expelled from the Garden of Eden.

GOD is like a father who wants only the well-being of his children, but because is their Guardian and Protector, He directs his people with a firm hand, not by prevent them from punishment that remains the only means that really makes men and women question about their own actions.
Also the prophet Habakkuk (as Gideon in Judges 6, 13) asks himself:

13 Your eyes are too pure to look on evil; You cannot tolerate wrongdoing.
Why then do You tolerate the treacherous? Why are You silent while the wicked swallow up those more righteous than themselves?
(Habakkuk 1, 13)

The CREATOR never remains impassive to evil, or “in silence” before injustice. Only the impatience of man allows to make them doubtful while await, but the good will inherit the Earth and the testimony of this remains under the eyes of everyone has sufficient time and ambition of growth to meditate on history, from the genesis to the most recent centuries.