Duty to God

1/ Believers and doubters (vs 16-17)
There is a choice to be made and not making one is a choice.

2/ Christ authority here and there (vs 18)
His authority on earth is established by the fact that he created everything.

His authority in heaven is established by his payment on the cross in the power of his resurrection.

3/ Our duty, His promise
Completing the task is possible when the instructor is always there.