Deuteronomy 1:9

1:9 I also said to you at that time, “I am no longer able to sustain you by myself.

Deuteronomy 7:17

7:17 If you think, “These nations are more numerous than I – how can I dispossess them?”

Deuteronomy 31:2

31:2 He said to them, “Today I am a hundred and twenty years old. I am no longer able to get about, ¹  and the Lord has said to me, ‘You will not cross the Jordan.’

[31:2]  ¹ tn Or “am no longer able to lead you” (NIV, NLT); Heb “am no longer able to go out and come in.”