'Brothers' in the Bible

After this he went down to Capernaum, and his mother and brothers and his disciples, and they stayed there {a few} days.

So his brothers said to him, "Depart from here and go to Judea, so that your disciples also can see your works that you are doing.

(For not even his brothers believed in him.)

But when his brothers had gone up to the feast, then he also went up, not openly, but (as it were) in secret.

Jesus said to her, "Do not touch me, for I have not yet ascended to the Father. But go to my brothers and tell them, 'I am ascending to my Father and your Father, and my God and your God.'"

So this saying went out to the brothers that that disciple would not die. But Jesus did not say to him that he would not die, but "If I want him to remain until I come, what [is that] to you?"