Jesus referred to James and John as the “sons of thunder” in the Gospel of Mark. The specific reference is found in Mark 3:17, where Jesus, while appointing the twelve apostles, gives them this nickname. The verse states:
“And James the son of Zebedee and John the brother of James; and he surnamed them Boanerges, which is, The sons of thunder.” (Mark 3:17, KJV)
The nickname “sons of thunder” likely reflects their fiery temperaments or passionate personalities, which is further illustrated in other biblical passages. For example, in Luke 9:54, when a Samaritan village does not welcome Jesus, James and John ask, “Lord, wilt thou that we command fire to come down from heaven, and consume them, even as Elias did?” This suggests their impulsive nature and desire for strong action.
The term highlights their zeal and fervor, which played significant roles in their ministry alongside Jesus.