a. The time for the second coming of Christ is predetermined by the Father. (A Calvinist concept). Nothing can hasten or delay the time of the second advent as this would alter the "sovereign will" of God.
b. Until quite recently, the prevailing view was (and is still strongly entrenched) that the time for the coming of Christ is predetermined, and His people can neither hasten nor delay it.
c. Christ wants to come; He is ready to come, He will come whenever His bride makes herself ready to welcome Him. In other words, Christ will gladly come whenever we really want Him to. To want Him to come follows an understanding of righteousness by faith.