# Your eyes have seen

"You saw". Here "eyes" refers to the people of Israel. 

# because of Baal Peor

"because of the sins you committed at Baal Peor" 

# Peor

See how you translated this in Deuteronomy 3:29.

# Yahweh your God has destroyed them from among you

Moses speaks to the people of Israel as though they were one person, so "your" and "you" are singular.