וְאָמַרְתָּ֖ אֶל־פַּרְעֹ֑ה כֹּ֚ה אָמַ֣ר יְהוָ֔ה בְּנִ֥י בְכֹרִ֖י יִשְׂרָאֵֽל׃
And thou shalt say unto Pharaoh: Thus saith the LORD: Israel is My son, My first-born.
Read Jewish philosophical commentary on Exodus 4:22: and classical philosophical sources.