Mark 3:15 YLT

¹³  And he goeth up to the mountain, and doth call near whom he willed, and they went away to him;

¹⁴  and he appointed twelve, that they may be with him, and that he may send them forth to preach,

¹⁵  and to have power to heal the sicknesses, and to cast out the demons.

¹⁶  And he put on Simon the name Peter;

¹⁷  and James of Zebedee, and John the brother of James, and he put on them names -- Boanerges, that is, 'Sons of thunder;'