The Hebrews Abraham , Isaac and Jacob, who later has his name changed to Israel, never called El Shaddia by the forever name YHWH-YaH El Shaddia Exo 3:15 and Exo 6:3 although the name YaH is recorded before Exo 3:15 & Exo 6:3 but this is only because the scribe was writing after the fact.
The Hebrews Abram/Abraham, Isaac and Jacob are never called the first born Son of YHWH-YaH. It is only after YaH delivered Israel out of Egyptian heathenism that YaH plants the remnant vine Israel as His first born Son. (Exo 4:22 KJV) And thou shalt say unto Pharaoh, Thus saith the LORD, Israel is my son, even my firstborn:
A Friend Willyah