Throwing aside Nathan’s point concerning Jesus as I believe OP is more alluding to God the Father. For all intents and purposes the idea of Yahweh as a old bearded man is more of a medieval to renaissance concept in order to make the concept of Iam existence to the mostly European public more understandable while also alluding to the humanoid deity’s of their ancient paganism past. Because in the Old Testament the only times Yahweh is seen by a prophet they all more or less have the same description of a ball of fire that is vaguely shaped like a person so such a deity would have no need for a gender
It is very true that the concept of God as an old bearded man is a later development. I would note along those lines that in Orthodox practice depictions of the Father are uncommon (though not unheard of) because properly speaking Christ is the icon of the Father, through whom we became able to depict God.
At least in the Early and High Middle Ages, depicting God the Father as a disembodied hand (sometimes coming down out of a cloud) was the go-to. Full-bore anthropomorphization of the "old man, young man, dove" setup familiar today is a Late Medieval development even in the West.
