Acts Period Epistles - Part 2. Acts Period Chronology. The lesson on 02-18 continues the study presented on 02-04 and covers the chronology of the New Testament books written during the Acts Period. God's given us objective truth in the bible... it's what the bible says... Subjective truth is what you believe the bible says... and it's what you do with it. Click here to listen to the lesson of the week.