Because I did not know. I will pass knowledge on. We are not to learn and keep it to yourself we are to teach the assembly
Prohibitions Against Making Allies With Nations Who Worship False Gods

Do not return to the ways of godworship (the worship of false gods) and sin. (Deuteronomy 17:16)
Do not follow teachings other than the Law of Yahweh taught by the sanctuary of Yahweh. (Numbers 15:39)
Do not make allies with godworshiping nations (nations who worship false gods). (Exodus 34:15)
Do not spare any of the godworshiping nations (nations who worship false gods). (Deuteronomy 20:16-18)
Do not show mercy to the godworshiping nations (nations who worship false gods). (Deuteronomy 7:2)
Do not permit godworshipers (worshipers of false gods) who refuse to repent to remain in the sanctuary of Yahweh. (Exodus 23:32-33)
Do not make marriages with godworshipers (worshipers of false gods). (Deuteronomy 7:3)
Do not allow a godworshiper (a worshiper of false gods) to join the sanctuary of Yahweh unless he repents. (Deuteronomy 23:3-4)
Do not abhor an Edomite who repents. (Deuteronomy 23:7)
Do not abhor an Egyptian who repents. (Deuteronomy 23:7)
Do not have fellowship with a godworshiper (a worshiper of false gods) who refuses to repent. (Deuteronomy 23:6)
Do not destroy fruit trees. (Deuteronomy 20:19)
Do not fear the adversaries of Yahweh. (Deuteronomy 7:21)
Do not forget the evil done by the adversaries of Yahweh. (Deuteronomy 25:19)