Numbers 14:23

14:23 they will by no means see the land that I swore to their fathers, nor will any of them who despised me see it.

Numbers 32:14

32:14 Now look, you are standing in your fathers’ place, a brood of sinners, to increase still further the fierce wrath of the Lord against the Israelites.

tn The word אִם (’im) indicates a negative oath formula: “if” means “they will not.” It is elliptical. In a human oath one would be saying: “The Lord do to me if they see…,” meaning “they will by no means see.” Here God is swearing that they will not see the land.