The message begins looking at the place and value of change in the purposes of God. It moves to then consider the stumbling block of incalcitrance climaxing in the recognition that essentially the work of God is always cooperative for the benefit of His people and the glory of His Name.

7 Nevertheless, I tell you the truth: it is to your advantage that I go away, for if I do not go away, the Helper will not come to you. But if I go, I will send him to you.
John 16:7 English Standard Version (ESV)