Deuteronomy 9:11

9:11 Now at the end of the forty days and nights the Lord presented me with the two stone tablets, the tablets of the covenant.

Deuteronomy 9:18

9:18 Then I again fell down before the Lord for forty days and nights; I ate and drank nothing because of all the sin you had committed, doing such evil before the Lord as to enrage him.

Deuteronomy 9:25

Moses’ Plea on Behalf of the Lord’s Reputation

9:25 I lay flat on the ground before the Lord for forty days and nights, for he had said he would destroy you.