Matthew 11:14 identifies John the Baptist as Elijah, which Jesus later explains to the disciples after the transfiguration in Matthew 17:10-13.

Matthew 11:13 states the Law and Prophets prophesied until John — Moses (Law) and Elijah (Prophets) appearing here signify their fulfillment in Christ.

1 Kings 17:1 introduces Elijah the Tishbite, the same prophet who appears at the Transfiguration, linking the OT and NT revelations.

2 Kings 2:11-14 records Elijah's translation to heaven, explaining how he can appear alive at the Transfiguration.

Malachi 4:5 prophesies Elijah's return before the great day; at the Transfiguration this is partially fulfilled as Elijah appears.

Mark 9:4 is the parallel account of the same event, also naming Moses and Elijah appearing with Jesus.

Luke 9:30 is another Synoptic parallel, confirming Moses and Elijah appeared and talked with Jesus.

Luke 9:31 uniquely adds that Moses and Elijah spoke about Jesus' 'departure' (exodus) in Jerusalem, revealing the topic of their conversation.

Luke 9:33 records the same event with Peter's offer to build tents, providing the parallel account of the Transfiguration.

2 Peter 1:17 directly refers to the Transfiguration, recounting the voice from heaven that honored Jesus as God's Son.

Luke 1:17 says John will go in Elijah's spirit; at the Transfiguration the actual Elijah appears, showing two dimensions of the Elijah figure.

Luke 16:16 notes the Law and Prophets until John; at the Transfiguration, Moses (Law) and Elijah (Prophets) appear, symbolizing the transition to Christ.