Exodus 3:15
15 And God said further to Moses, "So shall you say to the children of Israel, '
The Lord God of your forefathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you.'
This is My name forever, and this is how I should be mentioned in every generation.
ט ווַיֹּ֩אמֶר֩ ע֨וֹד אֱלֹהִ֜ים אֶל־משֶׁ֗ה כֹּ֣ה תֹאמַר֘ אֶל־בְּנֵ֣י יִשְׂרָאֵל֒
יְהֹוָ֞ה אֱלֹהֵ֣י אֲבֹֽתֵיכֶ֗ם אֱלֹהֵ֨י אַבְרָהָ֜ם אֱלֹהֵ֥י יִצְחָ֛ק וֵֽאלֹהֵ֥י יַֽעֲקֹ֖ב שְׁלָחַ֣נִי אֲלֵיכֶ֑ם
זֶה־שְּׁמִ֣י לְעֹלָ֔ם וְזֶ֥ה זִכְרִ֖י לְדֹ֥ר דֹּֽר:
The God of Abraham, Isaac, and Jacob is known as YHVH, not "The Father"
Exodus 7:8-10
8 The Lord spoke to Moses and Aaron, saying,
ח וַיֹּ֣אמֶר יְהֹוָ֔ה אֶל־משֶׁ֥ה וְאֶל־אַֽהֲרֹ֖ן לֵאמֹֽר
9"When Pharaoh speaks to you, saying, 'Provide a sign for yourselves,' you shall say to Aaron, 'Take your staff, [and] cast [it] before Pharaoh; it will become a serpent.' "
ט כִּי֩ יְדַבֵּ֨ר אֲלֵכֶ֤ם פַּרְעֹה֙ לֵאמֹ֔ר תְּנ֥וּ לָכֶ֖ם מוֹפֵ֑ת וְאָֽמַרְתָּ֣ אֶל־אַֽהֲרֹ֗ן קַ֧ח אֶת־מַטְּךָ֛ וְהַשְׁלֵ֥ךְ לִפְנֵֽי־פַרְעֹ֖ה יְהִ֥י לְתַנִּֽין
10 [Thereupon,] Moses and Aaron came to Pharaoh,
and they did so, as the Lord had commanded; Aaron cast his staff before Pharaoh and before his servants, and it became a serpent.
י וַיָּבֹ֨א משֶׁ֤ה וְאַֽהֲרֹן֙ אֶל־פַּרְעֹ֔ה
וַיַּ֣עֲשׂוּ כֵ֔ן כַּֽאֲשֶׁ֖ר צִוָּ֣ה יְהֹוָ֑ה וַיַּשְׁלֵ֨ךְ אַֽהֲרֹ֜ן אֶת־מַטֵּ֗הוּ לִפְנֵ֥י פַרְעֹ֛ה וְלִפְנֵ֥י עֲבָדָ֖יו וַיְהִ֥י לְתַנִּֽין
Aaron and Moses confronted Pharaoh and did precisely what YHVH told them to do.