INTRODUCTION--LAST DAYS OF OUR LORD UPON EARTH--HIS ASCENSION. (Act 1:1-11) former treatise--Luke's Gospel. Theophilus--(See on Luk 1:3). began to do and teach--a very important statement, dividing the work of Christ into two great branches: the one embracing His work on earth, the other His subsequent work from heaven; the one in His own Person, the other by His Spirit; the one the "beginning," the other the continuance of the same work; the one complete when He sat down at the right hand of the Majesty on high, the other to continue till His second appearing; the one recorded in "The Gospels," the beginnings only of the other related in this book of "The Acts." "Hence the grand history of what Jesus did and taught does not conclude with His departure to the Father; but Luke now begins it in a higher strain; for all the subsequent labors of the apostles are just an exhibition of the ministry of the glorified Redeemer Himself because they were acting under His authority, and He was the principle that operated in them all" [OLSHAUSEN].