The Bible describes these giants as the offspring of the fallen angels and says some were as big as cedars this as also why the Bible says God flooded the world but they were not completely wiped out thats why God had isreal take and kill the nephilim tribes the cannanites, amorites, raphiam the decendants of the giants this is also the land God promised isreal (land of cannan) in order to wipe out these nephilim tribes.
Then the people began to multiply on the earth, and daughters were born to them. The sons of God saw the beautiful women and took any they wanted as their wives. Then the Lord said, “My Spirit will not put up with humans for such a long time, for they are only mortal flesh. In the future, their normal lifespan will be no more than 120 years.” In those days, and for some time after, giant Nephilites lived on the earth, for whenever the sons of God had intercourse with women, they gave birth to children who became the heroes and famous warriors of ancient times. The Lord observed the extent of human wickedness on the earth, and he saw that everything they thought or imagined was consistently and totally evil. So the Lord was sorry he had ever made them and put them on the earth. It broke his heart. And the Lord said, “I will wipe this human race I have created from the face of the earth. Yes, and I will destroy every living thing—all the people, the large animals, the small animals that scurry along the ground, and even the birds of the sky. I am sorry I ever made them.” But Noah found favor with the Lord.Genesis 6:1-8 NLT
He confirmed it to Jacob as a decree, and to the people of Israel as a never-ending covenant: “I will give you the land of Canaan as your special possession.”Psalms 105:10-11 NLT
Then the Lord told him, “I have certainly seen the oppression of my people in Egypt. I have heard their cries of distress because of their harsh slave drivers. Yes, I am aware of their suffering. So I have come down to rescue them from the power of the Egyptians and lead them out of Egypt into their own fertile and spacious land. It is a land flowing with milk and honey—the land where the Canaanites, Hittites, Amorites, Perizzites, Hivites, and Jebusites
now live.Exodus 3:7-8 NLT
But Caleb tried to quiet the people as they stood before Moses. “Let’s go at once to take the land,” he said. “We can certainly conquer it!” But the other men who had explored the land with him disagreed. “We can’t go up against them! They are stronger than we are!” So they spread this bad report about the land among the Israelites: “The land we traveled through and explored will devour anyone who goes to live there. All the people we saw were huge. We even saw giants there, the descendants of Anak. Next to them we felt like grasshoppers, and that’s what they thought, too!”Numbers 13:30-33 NLT
During another battle at Gob, Elhanan son of Jair from Bethlehem killed the brother of Goliath of Gath. The handle of his spear was as thick as a weaver’s beam! In another battle with the Philistines at Gath, they encountered a huge man with six fingers on each hand and six toes on each foot, twenty-four in all, who was also a descendant of the giants. But when he defied and taunted Israel, he was killed by Jonathan, the son of David’s brother Shimea.2 Samuel 21:19-21 NLT “But as my people watched, I destroyed the Amorites, though they were as tall as cedars and as strong as oaks. I destroyed the fruit on their branches and dug out their roots. It was I who rescued you from Egypt and led you through the desert for forty years, so you could possess the land of the Amorites. I chose some of your sons to be prophets and others to be Nazirites. Can you deny this, my people of Israel?” asks the Lord.Amos 2:9-11 NLT