Life Together, Chapter 4, “Ministry”
https://www.churchsp.org/adulted20101031c/
We must be ready to allow ourselves to be interrupted by God. God will be constantly crossing our paths and canceling our plans by sending us people with claims and petitions. We may pass them by, preoccupied with our more important tasks…When we do that we pass by the visible sign of the Cross, raised athwart our path to show us, not our way, but God’s way must be done.
It is a strange fact that Christians and even ministers frequently consider their work so important and urgent that they allow nothing to disturb them. They think they are doing God a service in this, but actually they are disdaining God’s “crooked yet straight path” (Gottfried Arnold). They do not want a life that is crooked and balked.
But it is part of the discipline of humility that we must not spare our hand where it can perform a service and that we do not assume that our schedule is our own to manage, but allow it to be arranged by God.
“Interruption Is God’s Invitation”
https://www.desiringgod.org/articles/interruption-is-gods-invitation
“Seize The Day’s Interruptions”
https://www.desiringgod.org/articles/seize-the-days-interruptions
Don't be so focused on our agenda that we miss God's agenda, and divine opportunities.