The Reformers did not return to the sources because they believed the old was better than the new, nor because antiquity possesses authority simply by virtue of its age. They returned to the sources to recover the language and words that were actually written and spoken, especially those by great teachers and, most importantly, God Himself.
The certainty of faith is utter assurance because it depends upon nothing of your own. It is entirely trusting that God is a propitious, pardoning God—the God who justifies sinners by forgiving them.
Sinners get faith as a gift when Christ takes their captivity captive.

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The implications were clear: Jesus’ death destroyed the things that distinguished people as educated or uneducated, rich or poor, free or enslaved, black or white, pious or godless.
His resurrection reveals that Jonah, and all of us, even the evilest people, are salvageable, even from suicide, in Jesus' death and resurrection.
They were righteous, but they were righteous because God declared it so. Just like us.
I venture to assert I have never read, in the entire Scriptures, words more beautifully expressive of the grace of God than these two children words.
Neither the disciples nor Paul expected a resurrected Messiah, so something has to account for their dramatic transition from faithless to fearless in the days/years following Jesus’ crucifixion.
Your faith is not dependent on whether or not you suffer well. Your faith is dependent on the fact that Christ did.
In our search for absolution, human beings leave no stone unturned. We’re desperate to have our uneasy consciences soothed.
It’s a delivery of historical facts that tells us who Jesus is and what he has done for us through his dying on the cross and his rising from the grave.
If I’m honest, I want that completed Bible reading plan more than I want grace.
We live in the strength of our baptism again and again and again, returning to it every day according to God's promise. 
The gospel is the good news that in Christ we have been given the very righteousness of Christ himself. This means that everything God commands of us is given to us in Christ as a gift.
The following is an excerpt from “A Year of Grace: Collected Sermons of Advent through Pentecost” written by Bo Giertz and translated by Bror Erickson (1517 Publishing, 2019).