God's "Anger" at the Burning Bush

Context: Before this scene, Moses meets God and hears God give a very explicit command in 3:10: וְעַתָּ֣ה לְכָ֔ה וְאֶֽשְׁלָחֲךָ֖ אֶל־פַּרְעֹ֑ה וְהוֹצֵ֛א אֶת־עַמִּ֥י בְנֵֽי־יִשְׂרָאֵ֖ל מִמִּצְרָֽיִם

Moses seems to resist the command. He first asks a lot of questions (Who am I to do this? What if the people ask me your name? What if the people don't believe me?) and then starts insisting that God send someone else. God, in turn, offers what appears to be the ultimate reassurance in 4:12:

שמות ד׳:י״ב

וְעַתָּ֖ה לֵ֑ךְ וְאָנֹכִי֙ אֶֽהְיֶ֣ה עִם־פִּ֔יךָ וְהוֹרֵיתִ֖יךָ אֲשֶׁ֥ר תְּדַבֵּֽר׃

Exodus 4:12

Now go, and I will be with you as you speak and will instruct you what to say.”

שמות ד׳:י״ג

וַיֹּ֖אמֶר בִּ֣י אֲדֹנָ֑י שְֽׁלַֽח־נָ֖א בְּיַד־תִּשְׁלָֽח׃

Exodus 4:13

But he said, “Please, O Lord, make someone else Your agent.”

שמות ד׳:י״ד

וַיִּֽחַר־אַ֨ף יְהוָ֜ה בְּמֹשֶׁ֗ה וַיֹּ֙אמֶר֙ הֲלֹ֨א אַהֲרֹ֤ן אָחִ֙יךָ֙ הַלֵּוִ֔י יָדַ֕עְתִּי כִּֽי־דַבֵּ֥ר יְדַבֵּ֖ר ה֑וּא וְגַ֤ם הִנֵּה־הוּא֙ יֹצֵ֣א לִקְרָאתֶ֔ךָ וְרָאֲךָ֖ וְשָׂמַ֥ח בְּלִבּֽוֹ׃

Exodus 4:14

The LORD became angry with Moses, and He said, “There is your brother Aaron the Levite. He, I know, speaks readily. Even now he is setting out to meet you, and he will be happy to see you.

Questions to consider:

1. We are told God יִּֽחַר־אַ֨ף at Moses, but how does God use this as an opportunity to model for Moses how to support people when we are angry at them?

2. After pushing back multiple times against God, Moses seems to accept the offer God provides in 4:14. Why? Why is the promise of Aaron helping in 4:14 more reassuring to Moses than the promise of God helping in 4:12?