Some people associate Yah- with the Akkadian God Ea, which is Enki in Sumerian. Enki's cult belongs to the oldest city, Eridu. The temple, in the same location, is present in the oldest layers of the city (4,500 B.C.). It appears that the temple was originally dedicated to a non-anthropomorphic god, Abzu, the watery deep. Later, anthropomorphic deities emerged. It's thought that he was originally subservient to the godess Ninhursag.
The original pool of water (Abzu) remained in front of the temple. This later became common for Mesopotamian temples. It might be the origin of holy water and baptisms. There wasn't much else in common with Yahweh, but were talking about 1,500 years between them. The cult worshipped fishes and had fish feasts. They've left a lot of fish bones behind. Enki had a major position in Sumer as the father of Inanna (Ishtar). Enki appears to have a supportive role in the creation myths of Babylon and Marduk.
You might be interested in the Ebla Bible Controversy. These may have been Nabi'utum (prophets) from Mari.
El was the patron deity of Yamhad (Aleppo). This was a powerful Bronze Age kingdom from 1800 B.C. until it was conquered by the Hittite king Suppiluliuma. Israelites are believed to have received Yahweh from Midianites, caravan traders around the Red Sea.