Rashi on Numbers 11:12/רש"י על במדבר י״א:י״ב

1כי תאמר אלי means, [HAVE I CONCEIVED ALL THIS PEOPLE] THAT THOU SHOULDST always SAY UNTO ME, “Carry them in thy bosom!?” And where did He speak thus to him? When He said to him, (Exodus 32:34) “Go, lead the people”; and it further states, (Exodus 6:13) “[And the Lord spoke unto Moses and unto Aaron] and gave them a charge concerning the children of Israel” saying unto them: “Take charge of them even under the risk (lit., under the condition) that they may stone you or at least insult you” (Sifrei Bamidbar 91; cf. Rashi on that verse).

2על האדמה אשר נשבעת לאבתיו UNTO THE LAND WHICH THOU SWAREST UNTO THEIR FATHERS hast Thou bidden me to carry them in my bosom.