# Yahweh your God is with you

"Yahweh will help Israel to prosper"

# your ... you

Here these pronouns are plural. 

# has given you peace on every side

"has caused all the nations who live around Israel to live peacefully with you"

# He has given the region's inhabitants into my hand

"He has given me power over everyone who lives around us"

# The region is subdued before Yahweh and his people

"The other nations no longer attack Yahweh and his people"