Casting all your care upon him - In every want or pressure.
But in the mean time watch. There is a close connexion between this, and the duly casting our care upon him. How deeply had St. Peter himself suffered for want of watching! Be vigilant - As if he had said, Awake, and keep awake. Sleep no more: be this your care. As a roaring lion - Full of rage. Seeking - With all subtilty likewise. Whom he may devour or swallow up - Both soul and body.
Be the more steadfast, as ye know the same kind of afflictions are accomplished in - That is, suffered by, your brethren, till the measure allotted them is filled up.
Now the God of all grace - By which alone the whole work is begun, continued, and finished in your soul. After ye have suffered a while - A very little while compared with eternity. Himself - Ye have only to watch and resist the devil: the rest God will perform. Perfect - That no defect may remain. Stablish - That nothing may overthrow you. Strengthen - That ye may conquer all adverse power. And settle you - As an house upon a rock. So the apostle, being converted, does now "strengthen his brethren."
As I suppose - As I judge, upon good grounds, though not by immediate inspiration. I have written - That is, sent my letter by him. Adding my testimony - To that which ye before heard from Paul, that this is the true gospel of the grace of God.
The church that is at Babylon - Near which St. Peter probably was, when he wrote this epistle. Elected together with you - Partaking of the same faith with you. Mark - It seems the evangelist. My son - Probably converted by St. Peter. And he had occasionally served him, "as a son in the gospel."