(Devarim 3:26) "And ("yithaber") the L-rd with me because of you (lema'anchem), and He would not hearken to me": R. Eliezer says: He was filled with wrath ("evrah" [like "yithaber"]). R. Yehoshua says: He (the L-rd) became like a woman who could not stoop because of her fetus ("ubar" [like "yithaber"]).
The Intensity of God's Refusal to Let Moses Enter
Sifrei Devarim 29:1