Verses with the word thunder in the New Testament (3 verses):

Mark 3:17
And James the son of Zebedee, and John the brother of James; and he surnamed them Boanerges, which is, The sons of thunder:

Revelation 6:1
And I saw when the Lamb opened one of the seals, and I heard, as it were the noise of thunder, one of the four beasts saying, Come and see.

Revelation 14:2
And I heard a voice from heaven, as the voice of many waters, and as the voice of a great thunder: and I heard the voice of harpers harping with their harps: