Numbers 13:3
And Moses by the commandment of the Lord sent them from the wilderness of Paran: all those men were heads of the children of Israel.
Cross-reference
Numbers 13:26 records the spies' return to the same wilderness of Paran at Kadesh, completing the mission described in verse 3.
Numbers 12:16 records Israel encamping in the Desert of Paran, the exact location from which Moses sent the spies in the next verse.
Numbers 32:8 explicitly recalls the sending of spies from Kadesh Barnea — a direct retrospective reference to this same event.
Numbers 10:12 records Israel's arrival at the wilderness of Paran, the same place from which Moses later sent the spies. Contextual setting.
Deuteronomy 1:23 recounts Moses selecting twelve men to explore the land — a parallel retelling of the same commissioning event.
Deuteronomy 9:23 recalls the same sending of spies from Kadesh-barnea, emphasizing Israel's rebellion and unbelief.