What is difference between saguna Brahman and Abrahamic religion gods like Jehovah , Allah.
God in Hinduism is both the material and the instrumental cause of the universe. That means God created the universe and is also the source of the fabric of the universe. For example, we find this famous verse in the Mundaka Upanishad (one of the principal Upanishads) -
"As a spider emits and draws in [its thread], as herbs arise on the earth, as the hairs of the head and body from a living person, so from the Imperishable arises everything here." Mundaka Upanishad - I.1.7
Chhandogya Upanishad (one of the principal Upanishads) says -
"In the beginning, my dear, the world was just Being (sat), one only, without a second." Chandogya Upanishad - VI.2.1
"It thought. May I be many, may I grow forth." - Chandogya Upanishad VI.2.3
Thus, you see that the Saguna Brahman is the instrumental cause and the material cause. In simpler words, he becomes the universe.
However, according to the Abrahamic religions, God is like a King who created the universe (instrumental cause). But their God is not the material cause of the universe.
Hindus are critical of this view. Because, as we know from our daily experiences, if you want to create something, you need a person (the creator) and the material. If you say the material was there apart from God, then God is not the ultimate source of everything!