# knowing the fear of the Lord

"knowing what it means to fear the Lord"

# we persuade people

"we persuade people of the truth of the gospel" or "we persuade people that we are legitimate apostles."

# What we are is clearly seen by God

"God clearly sees what kind of people we are" 

# I hope that it is also clear to your conscience

"I expect that it is also clear to your conscience" or "I trust that that you are also convinced of it"