# he smelled the smell of his clothes and blessed him

"Isaac smelled his clothes and they smelled like Esau's clothes, so Isaac blessed him"

# the smell

"the scent"

# blessed him

"then he blessed him." This refers to the formal blessing a father pronounces on his children.

# See, the smell of my son

"Truly, the smell of my son"

# that Yahweh has blessed

"that Yahweh has caused to be very productive"