וַתֵּ֣לֶד בֵּ֔ן וַיִּקְרָ֥א אֶת־שְׁמ֖וֹ גֵּרְשֹׁ֑ם כִּ֣י אָמַ֔ר גֵּ֣ר הָיִ֔יתִי בְּאֶ֖רֶץ נָכְרִיָּֽה׃ (פ)
Nanganak siya ng isang anak na lalaki, at tinawag niya ang kanyang pangalan na Gersom, sapagkat sinabi niya: “Naging dayuhan ako sa isang banyagang lupain.”
Shenei Luchot HaBerit
I have explained why Moses named Gershon as he did, and why his second son Eliezer is not mentioned until Exodus 18,4, long after the Exodus. Only at that point does the Torah give the reason he had been called Eliezer, since G–d had already saved Moses from the clutches of Pharaoh.