Quotes from Lewis Sperry Chafer

according to the Bible, salvation is the result of the work of God for the individual, rather than the work of the individual for God, or even the work of the individual for himself.

It is recorded of Jesus that He was "born King of the Jews" (Mt. 2:2). To this throne He made final claim at His trial (Mt. 27:11). And under this accusation He suffered (Mt. 27:29) and died (Mt. 27:37). One needs only to search the Scriptures to discover the fact that He is never mentioned as King of the church, nor King of the nations until He comes again as "King of kings, and Lord of lords" (Rev. 19:16).

As there was a period between the anointing of David and the final banishment of Saul, in which Saul reigned as a usurper, though under Divine sentence and David was the God-appointed king: in like manner there is now a similar period in which Satan rules as a usurper, though under sentence; and the actual occupation of the throne by Christ is still future. In this period Satan, the rejected monarch, still rules; hunting to the death all those who have allied themselves with Christ,

Spirit-filled Christians are quite apt to be physically exhausted at the close of the day. They are weary in the work, but not weary of the work.