Jesus (Yeshua) clearly said a good tree cannot produce bad fruit.

How/why is evil/darkness present in YHWH/YHVH (Yahweh/Yehovah) if he is Jesus and/or His Father?

I form light and create darkness;

I make well-being and create calamity;

I am YHWH, who does all these things.

- Is 45.7

YHWH is a man of war;

YHWH is his name.

- Ex 15.3

“For no good tree bears bad fruit, nor again does a bad tree bear good fruit, for each tree is known by its own fruit.” [Jesus]

- Lu 6.43-44