We too, bound by the present Judeo-Christian usage of God taken as a masculine in English, use the masculine pronoun without assigning any particular gender to God for God is above such an imagination. And yet, prompted by the later Avesta, we have become accustomed to say Ahura Mazda. And this makes a great difference. Gods and goddesses were know for their power. Zarathushtra laid stress on God's wisdom.
Strength follows super-intellect.
God is wise. He is the wisest. He is knowing, the most knowing. He knows best. He knows best the past, present, and future.