Titus 3:4-5, But when the goodness and loving kindness of God our Saviour appeared, He saved us.
These words ought to build our faith. Did God appear in Christ to judge us and condemn us? No, though He certainly could have and has every right to. Instead, He chose to appear in Christ to save us. These words are true for you if you believe them. His grace and mercy are true for you if you believe Him. If you hear these words and do not believe, in Luther’s words, “By your unbelief you make these precious, comforting, gracious words into lies… You could commit no greater sin” (Church Postil, sermon for the Second Day of Christmas on Titus 3:4-8, Luther’s Works 75:233). But for we who believe these words on account of Christ, we are justified by faith, and it is these words that build up our faith no matter how much the world mocks us and scolds us.