# you diminish respect for God

Possible meanings are 1) "because of what you say and do, other people no longer respect God" or 2) "you are no longer respecting God."

# diminish

make smaller

# you obstruct devotion to him

Possible meanings are 1) "you make it difficult for others to devote themselves to God" or 2) "you are no longer devoting yourself to God."

# obstruct

block someone's path

# devotion to

"meditation on" or "concern for"