Devarim 3:26

ויתעבר ה׳ This means, GOD WAS FILLED WITH WRATH (Sifrei Bamidbar 135). למענכם ON ACCOUNT OF YOU — You caused this for me (that God was wroth with me); similarly it states, (Psalms 106:32) “And they provoked Him at the waters of Meriba, and He did evil to Moses on their account". רב לך LET IT SUFFICE THEE (i.e. pray no more), so that people should not say, “How harsh is the Master, and how obstinate and importunate is the disciple" (Sotah 13b). Another explanation of רב לך (lit., there is much for you) — more than this is reserved for you; much is the goodness that is stored up for thee (Sifrei Bamidbar 135).

וַיִּתְעַבֵּ֨ר יְהֹוָ֥ה בִּי֙ לְמַ֣עַנְכֶ֔ם וְלֹ֥א שָׁמַ֖ע אֵלָ֑י וַיֹּ֨אמֶר יְהֹוָ֤ה אֵלַי֙ רַב־לָ֔ךְ אַל־תּ֗וֹסֶף דַּבֵּ֥ר אֵלַ֛י ע֖וֹד בַּדָּבָ֥ר הַזֶּֽה׃

But the Lord was angry with me for your sakes, and would not hear me: and the Lord said to me, Let it suffice thee; speak no more to me of this matter.