What advice did Balaam give the Moabites when he could not curse Israel?

When Balaam could not curse Israel, he advised the Moabites to place their prettiest girls where Jewish young men could be seduced. This satanically inspired counsel worked, causing Israel to lose their separated character and bringing God's judgment, with 23,000 Jews put to death.

Les explains that Balak, king of Moab, brought Balaam to curse Israel because he knew he could not defeat them militarily—there were too many. But Balaam could not curse them because God would not let him. So Balaam had another satanically inspired thought: he told the Moabites to put their prettiest girls out where Jewish young men could be seduced. It worked. God let judgment fall, and 23,000 Jews had to be put to death because they had lost their separated character. Les emphasizes that God had mandated Israel stay separated from the Gentiles; when they lost that separation, judgment fell. This was not Jewish bigotry or pride but God's command. He also notes that later, in Acts 22, the mere mention of Gentiles caused a riot among the Jewish multitude.

How did Balaam plan to make Israel fall into sin?

When Balaam could not curse Israel because God would not permit it, he proposed a satanically inspired alternative: have the Moabites send their prettiest women to seduce Jewish young men. This worked, causing Israel to lose their separated character, and God's judgment fell, with 23,000 Jews put to death.