Luke 1 already interpreted John through Malachi’s Elijah language; Luke 7 adds the Malachi 3 messenger text, completing the forerunner portrait. Cumulative Gospel evidence: Luke 7’s Malachi 3 quotation completes the Elijah-forerunner profile Luke had already introduced from Malachi 4.

John's preparatory role and Elijah-like profile fit Malachi's messenger/Elijah expectation; Matthew later makes this relationship more explicit in Jesus' teaching about John.

Jesus says that John is the Elijah who was to come for those willing to receive it, directly interpreting Malachi’s Elijah expectation. Jesus identifies John with the expected Elijah role.

When the disciples ask about Elijah’s coming, Jesus says Elijah has already come and Matthew explains that they understood him to mean John the Baptist. Jesus’ answer to the disciples explicitly places John inside the Elijah expectation.

Gabriel describes John as going before the Lord in the spirit and power of Elijah and echoes Malachi’s heart-turning language, providing inspired interpretation of the Elijah promise.

Jesus answers the scribal expectation that Elijah must come first by affirming Elijah’s coming and then saying Elijah has already come, placing John’s forerunner ministry inside Malachi’s Elijah expectation even though Mark does not name John in this sentence as explicitly as Matthew does.

Historical Elijah prays that Israel may know the LORD has “turned their heart back again”; Malachi later promises Elijah before the Day of the LORD to “turn the heart” across generations. The named prophet, shared heart-turning mission, and covenant-restoration setting form a strong echo.

Elijah’s extraordinary departure leaves his prophetic role open to future development; Malachi later promises Elijah before the great and dreadful Day of YHWH, turning the historical prophet into a future-oriented expectation. The New Testament then applies that Elijah expectation to John the Baptist’s ministry.