Numbers 13:28-30

²⁸But the people living in the land are strong, and the towns are walled and very great; further, we saw the children of Anak there.

²⁹And the Amalekites are in the South; and the Hittites and the Jebusites and the Amorites are living in the hill-country; and the Canaanites by the sea and by the side of Jordan.

³⁰Then Caleb made signs to the people to keep quiet, and said to Moses, Let us go up straight away and take this land; for we are well able to overcome it.