Luke's fundamental theological matrix surfaces in both texts. To review that pattern of Luke's theology see Sabb.theol. #44. This was a study of the Christmas gospel (Luke 2). Its six basic parts were these three diagnostic steps: Night, The Frightful Visitor, Lost; and then the prognostic triad was: Savior, Joy, Glorifying. Here's how that matrix shines through in
STAGE 2. At a deeper level they are turned away from God with sins not blotted out (19), turned toward, not away, from wickedness (26). Not following Moses' own words about the Messiah. Thus exposed to Moses' sanction (23), which is....
STAGE 3. Sins not wiped out, completely cut off from God's people. Lost to God.
STAGE 4. "But God raised him from the dead"(14) and sends him right back as savior to the lost "to bless you by turning each of you from your wicked ways." This one is "the author of life." His name gives complete healing (16).
STAGE 5. Repentance (turning away from other names) and Faith in that name brings "times of refreshing" (16, 19, 22b).
STAGE 6. Now segue to the man just healed: "Walking and jumping and praising God." In the technical language of the Easter Psalm 118, that's "todah."
STAGE 2. Questionings in the heart. "Not believing for joy" (41). Whatever that paradox means, the new mind-set (Greek: metanoia) "repentance" (47), a specific gift of Easter, has not yet taken over within them.
STAGE 3. If no longer completely "lost" to God, they are not yet "home" either.
STAGE 4. Saving these still half-lost disciples, joyful disbelievers, Jesus offers the passion tokens of his hands and feet, opens their minds to the scriptures and thus to himself, especially his death and resurrection.
STAGE 5. Disbelief is finally and fully over-joyed when (49) the "promise of the Father" comes, when Pentecost "clothes them with power from on high."
STAGE 6. Witnesses: preaching repentance and forgiveness in his name to the nations.
"Ed, A further, perhaps more central insight (considering Jesus' response to Thomas in v. 29 and John's epilogue, vv. 30-31) is that the apostolic word is the equivalent of Jesus' own word. It is John's "He who heareth you heareth me." Thomas forfeits all the goodies you sketch, because he will not believe. Believe what? The apostolic witness. "As the Father sent me, so I now send you." The Spirit empowers the central core of the message, v.23. Then v. 29b, "Blessed are they who without seeing, nevertheless believe." Believe what and whom? The Spirit-empowered apostolic witness to the again-living Lord. Hence the final epilogue, John's own plea to listen to him and the promise of faith produced by the apostolic witness and consequent life."