“Do not leave alive anything that Breathes. Completely destroy them—the Hittites, Amorites, Canaanites, Perizzites, Hivites and Jebusites—as the Lord your God has commanded you” (Deut. 20:16:17)
Moses commanded Joshua to completely destroy the Canaanite ‘Nephilim’ nations as part of the Israelite conquest of Canaan. The curse word phrase "God damn it" means to judge or condemn someone to punishment in Hell. So, why did GOD curse the evil Canaanite Nation and damn these children of the ‘fallen angels’ to Hell? Moses knew that Noah cursed his grandson —Canaan who was born Nephilim (Gen. 9:25). Noah knew that GOD —DAMNED the Giant NEPHILIM (fallen angel offspring) with the Great Flood. However, Nephilim Giant (genes) in the land before the Great Flood survived after the flood —“The Nephilim were on the earth in those days—and also afterward—when the sons of God went to the daughters of humans and had children by them” (Gen. 6:4). The Bible doesn’t say how the Nephilim survived the flood, but one theory is that Ham’s wife was ‘Nephilim pregnant’ before she entered Noah’s Ark. Their ‘Nephilim’ son was Canaan. Noah knew that GOD sent the flood to destroy all flesh to Damn the Nephilim, so Noah—cursed his ‘Nephilim’ grandson Canaan —who was the ancestor of the Canaanites. Noah’s prophecy and curse, damning the Nephilim on Earth, was only partially fulfilled during the time of Joshua because the Israelites failed in their mission that Moses gave them and left many Nephilim alive.
The reasons GOD sent the Flood, damning the Nephilim was to prevent the ‘seed of Satan’ from corrupting the ‘seed of Jesus’ (Gen. 3:15) thru sexual Nephilim Porneia (Spiritual/ religious idolatry). GOD ordered the destruction of this entire ‘Soul-less Abomination’ population to keep the ‘Bloodline of JESUS’ pure, holy, and righteous for Him to be the Messiah, Savior, and the Anointed One. GOD wanted to protect His People from Idol Worship —“Otherwise, they will teach you to follow all the detestable things they do in worshiping their gods, and you will sin against the LORD your God” (Deut. 20:18). Thank GOD that Jesus’ bloodline was not corrupted because this allowed Him to conquer death and defeat Satan. However, the sin of sexual idolatry (Porneia) continues to this day, tempting if it were possible even the Chosen Ones. Jesus said, “For false messiahs and false prophets will rise up and perform great signs and wonders so as to deceive, if possible, even GOD’s chosen ones” (Matt. 24:24).
GOD first cursed the Father of the Nephilim, Satan —“Cursed are you above all livestock and all wild animals! You will crawl on your belly and you will eat dust all the days of your life” (Gen. 3:4). GOD then cursed Cain the first Nephilim child —“Now you are under a curse and driven from the ground, which opened its mouth to receive your brother’s blood from your hand. When you work the ground, it will no longer yield its crops for you. You will be a restless wanderer on the earth” (Gen. 4:11-12). GOD cursed ‘Canaan’ through Noah —“Then he cursed Canaan, the son of Ham: “May Canaan be cursed! May he be the lowest of servants to his relatives” (Gen. 9:25). GOD then cursed the Canaanite Nephilim Nations through Moses and Joshua —“Do not leave alive anything that Breathes” (Deut. 20:16:17).
Finally, JESUS curses ALL Nephilim on Earth at the final Harvest Time —“Jesus replied, “The Son of Man is the farmer who plants the GOOD Seed. The field is the world, and the good seed represents the people of the Kingdom. The Weeds are the people who belong to the Evil One. The enemy who planted the weeds among the wheat is the Devil. The harvest is the end of the world, and the harvesters are the Angels.
“Just as the weeds are sorted out and burned in the fire, so it will be at the end of the world. The Son of Man will send his angels, and they will remove from his Kingdom everything that causes sin and ALL who do Evil. And the Angels will throw them into the fiery furnace, where there will be weeping and gnashing of teeth. Then the righteous will shine like the sun in their Father’s Kingdom. Anyone with ears to hear should listen and understand!” (Matt. 13:37-43).“ The reason the Son of GOD appeared was to destroy the Devil’s work (1 Jn. 3:8)