They have been given a work of the most solemn import—the proclamation of the first, second, and third angels’ messages.
There is no other work of so great importance.
They are to allow nothing else to absorb their attention. 9T 19.1

Acts 1:8 But you shall receive power when the Holy Spirit has
come upon you; and you shall be witnesses to Me in
Jerusalem, and in all Judea and Samaria, and to the end
of the earth.”