Midrash for Exodus 33:18

He said I am the God of your father. This is as it is written, "A fool will believe anything...". "Peti" is the language of seduction (pituy) as it says, "when a man seduces" (yifteh). R. Yehoshua the Kohen b. Nehemiah said, When the Holy Blessed One revealed Himself to Moshe he was a prophetic novice. The Holy Blessed One said, If I reveal Myself to him in a great voice I will frighten him, with a small voice I will sour him on prophecy. What did He do? He revealed Himself to him with the voice of his father. Moshe said, "Here I am! What does father ask?" The Holy Blessed One said, "I am not your father, rather I am the God of your father. I came to you with seduction so that you would not be afraid."

(Deut. 3:23:) “I besought the Lord.” This text is related (to I Kings 8:30 // II Chron. 6:21), “And may You harken unto the prayer of Your servant and to his supplication.” See, prayer is designated by many names:¹¹Sifre to Deut. 3:23 (26); Deut. R. 2:1. (1) prayer, (2) beseeching, (3) call, (4) cry, (5) outcry, (6) chant, (7) encounter, (8) falling and (9) amidah.¹²Standing, which is the name given to The Eighteen Blessings (Shemone ‘Esreh) of the daily liturgy. Why did Moses only pray under the word, "beseeching (rt.: hnn)"? [This is the usage here] where it is stated (in Deut. 3:23), “I besought (rt.: hnn) the Lord.” It is simply that when Moses stood there and said to the Holy One, blessed be He, (in Exod. 33:18), “Please show me Your glory,” he said to Him, “Master of the world, please show me by what principle You run Your world.” It is so stated (in Exod. 33:13), “please show me Your principle.” The Holy One, blessed be He, said to him, “Yes, I will show you; (in Exod. 33:19:) ‘I will make all My goodness pass before you, and I will call….’” [The Holy One, blessed be] He, said to him, “I have no obligation to [any] creature. Anytime a person does a commandment, I give him [reward] as a favor. Not that I have any obligation to any creature, but I do it as a favor.” Thus it is stated (ibid., cont.), “I will be gracious (rt.: hnn) to whom I will be gracious […].” Moses said to him, “If so, do me a kindness, make a commandment for me and grant [the reward] to me as a favor (rt.: hnn).” Ergo (in Deut. 3:23), “I besought [the Lord].”

(Deut. 3:23:) I BESOUGHT THE LORD. This text is related (to I Kings 8:30 // II Chron. 6:21): AND YOU SHALL HARKEN UNTO THE {PRAYER} [SUPPLICATION] OF YOUR SERVANT. Prayer is designated by many names.¹³Cf. Tanh., Deut. 2:3; Sifre to Deut. 3:23 (26); Deut. R. 2:1. (1) Prayer, (2) beseeching, (3) call, (4) cry, (5) outcry, (6) chant, (7) supplication, (8) wailing, (9) calling, (10) plea, (11) Amidah,¹⁴The Eighteen Benedictions (Shemone ‘Esreh) of the daily liturgy. (12) entreaty. Why did Moses only pray under the word, "beseeching (rt.: HNN)"? <This is the usage here> where it is stated (in Deut. 3:23): I BESOUGHT (rt.: HNN) THE LORD. It is simply that when Moses stood there and said to the Holy One (in Exod. 33:18): PLEASE SHOW ME YOUR GLORY, he said to him: Sovereign of the World, please show me by what principle you run your world. The Holy One said to him: I will show you. (Exod. 33:19:) AND HE SAID: I WILL MAKE ALL MY GOODNESS PASS [BEFORE YOU]. The Holy One said to him: I have no obligation to <any> creature, but I am giving you <this> as a favor (rt.: HNN). Thus it is stated (ibid., cont.:) I WILL BE GRACIOUS (rt.: HNN) TO WHOM I WILL BE GRACIOUS. [Moses said to him: If so, do me a kindness, and grant it to me as a favor (rt.: HNN). Ergo (in Deut. 3:23): I BESOUGHT THE LORD.]