7 forming [rc,yE] light, and creating [ar"B'] darkness; making [hf'[] peace, and creating [ar"B] evil. I, Jehovah, do [hf'['] all these things. (Isaiah 45 GLT)
rc,yE to form or formulate ar"B' to carve out or separate from hf'[' to labour/work/make
So a more precise translation would be...
7 Forming [rc,yE] light, and carving [ar"B'] out darkness, making [hf'[] peace, and carving out [ar"B] evil, I, [am] Jehovah, doing/making [hf'['] all these things.' (Isaiah 45)
Jehovah is carving out evil in the sense of defining it as lawlessness which is symbolised by darkness. He is making a separation between the light and the darkness, the lawful and the lawless. He forms or formulates light, which shows you which way to go and is the law of what you should do. Then he carves out darkness, which is the law of what you should not do.
4 The Rock, perfect is his activity, For all his ways are justice. A God of faithfulness, with whom there is no injustice; Righteous and upright is he. (Deuteronomy 32 NWT)
So God cannot do evil, he cannot himself sin, breaking a law which he has signed up to. But he can and does define evil, being a lawmaker.
5 And this is the message which we have heard from Him, and we proclaim to you: God is light, and no darkness is in Him, none! (1 John 1 GLT)
9 out of the 10 commandments were all prohibitions, these were the law of the darkness. Then Jesus elevated two other laws to be commandments or exhortations, which are the law of the light.
36 Teacher, which is the greatest commandment in the
Law?
37 He said to him: You must love Jehovah your God with your
whole heart and with your whole soul and with your whole mind.
38 This is the greatest and first commandment.
39 The second, like it, is this: You must love your
neighbour as
yourself.
40 On these two commandments the whole Law hangs, and the
Prophets (Matthew 22).
These are both proactive exhortations. Whereas the 10 commandments say...
1
And God proceeded to speak all these words, saying:
2 I am Jehovah your God, who have brought
you out of the land of Egypt, out of the house of slaves. [1]
3 You must not have any other gods against
my face. [1]
4 You must not make for yourself a carved
image or a form like anything that is in the heavens above or that is on the
earth underneath or that is in the waters under the earth.
[2]
5 You must not bow down to them nor be
induced to serve them, because I Jehovah your God am a God exacting exclusive
devotion, bringing punishment for the error of fathers upon sons, upon the 3rd
generation and upon the 4th generation, in the case of those who hate me.
6 But exercising loving-kindness toward
the thousandth generation in the case of those who love me and keep my
commandments [2].
7 You must not take up the name of Jehovah
your God in a worthless way, for Jehovah will not leave the one unpunished who
takes up his name in a worthless way [3].
8 Remembering the Sabbath day to hold it
sacred, [4]
9 you are to render service and you must
do all your work 6 days. [4]
10 But the 7th day is a Sabbath to Jehovah
your God. You must not do any work, you nor your son nor your daughter, your
slave man nor your slave girl nor your domestic animal nor your alien resident
who is inside your gates. [4]
11 For in 6 days Jehovah made the heavens
and the earth, the sea and everything that is in them, and he proceeded to rest
on the 7th day. That is why Jehovah blessed the Sabbath day and proceeded to
make it sacred. [4]
12 Honor your father and your mother in
order that your days may prove long upon the ground that Jehovah your God is
giving you. [5]
13 You must not murder. [6]
14 You must not commit adultery. [7]
15 You must not steal. [8]
16 You must not testify falsely as a
witness against your fellowman. [9]
17 You must not desire your fellowman's
house. You must not desire your fellowman's wife, nor his slave man nor his
slave girl nor his bull nor his ass nor anything that belongs to your fellowman [10]
(Exodus 20).
Only the 5th commandment to honour your parents carries a promise with it. This is because it is an exhortation to walk in the light rather than a prohibition from walking in the darkness.
So crudely speaking. Jesus told us what we should do and Moses told us what we shouldn't do.
Those who walk in the light find peace. Those who walk in the darkness do evil. For peace and evil and the consequences of light and dark behaviour.
19 Now this is the basis for judgment, that the light
has come into the world but men have loved the darkness rather than the light,
for their works were wicked.
20 For he that practices vile things hates the light and
does not come to the light, in order that his works may not be reproved.
21 But he that does what is true comes to the light, in
order that his works may be made manifest as having been worked in harmony with
God. (John 3 NWT)
The noun peace ~Alv' is from the root ~l;v an adjective meaning. whole, entire (Gesenius)