Equipping means providing items, equipment, tools, resources provided for a purpose.
Now may the God of peace— who brought up from the dead our Lord Jesus, the great Shepherd of the sheep, and ratified an eternal covenant with his blood—
Endure suffering along with me, as a good soldier of Christ Jesus. Soldiers don’t get tied up in the affairs of civilian life, for then they cannot please the officer who enlisted them.
The church is an army, once the church is an army, then you are a soldier of Christ. So endure suffering as a soldier of Christ.