Deuteronomy 1:6
The Lord our God spake unto us in Horeb, saying, Ye have dwelt long enough in this mount:
Cross-reference
Deuteronomy 5:2 recalls the same covenant made at Horeb, reinforcing the event referenced here.
In Deuteronomy 2:3, the same phrase 'long enough' recurs when God tells Israel to turn north from Mount Seir, echoing the earlier command at Horeb.
Exodus 19:1 records Israel's arrival at Sinai (Horeb), the event that led to the stay referenced here.
Exodus 19:2 details their camping at Sinai before the mount — the very place where God said they had dwelt long enough.
In Numbers 10:11-13, the actual departure from Sinai is recorded — the cloud lifting and Israel moving, fulfilling God's command to leave Horeb.
In Numbers 33:16, the journey itinerary records the departure from Sinai to Kibroth Hattaavah, marking the exact moment God's command was carried out.