Arthur Pink called unfaithfulness “one of the outstanding sins of these evil days,” but Scripture answers that darkness by pointing to the One who is faithful in all things. Psalm 12 cries out that the godly and faithful seem to have vanished, while Lamentations 3 answers that God’s mercies are new every morning and His faithfulness is our portion. That faithfulness was proven most fully at the cross, where Jesus bore the full weight of God’s justice against sin so sinners could be counted righteous.
The second part follows that faithfulness into Peter’s failure. Jesus warned Peter that Satan had demanded to sift him like wheat, and even though Peter denied Him three times, the risen Christ sought him out again by the Sea of Galilee. Over a shared breakfast, Jesus restored Peter three times over — “tend my lambs,” “shepherd my sheep,” “tend my sheep” — turning his shame into a calling.