“In this I also exercise myself to have a conscience void of offence toward God and men always.”
‘This' either refers to ‘the Way', or signifies a general ‘all this I am talking about'. Either way it is because of these things that he behaves according to his conscience, seeking to have a conscience void of offence towards God and men. That being so the claims of his opponents are ridiculous. This also emphasises that being a member of ‘the Way' results in men living conscience controlled lives.