Alas! how the heart can spring up when set at ease after all manner of dealings with it. Peter, so humbled, so wonderfully restored by exhaustless grace, set at ease, must know what was to happen to John—what shall happen to him? He loved John surely, and it served as occasion to revelation—still the Lord must say “What is that to thee?” and turn back to the “Follow thou me."
I add the Jewish commission to Peter seems to me evident here.