'Brothers' in the Bible

After this he went down to Capernaum, with his mother, his brothers, and his disciples, and they were there not more than two or three days.

So his brothers said to him, Go away from here into Judaea so that your disciples may see the works which you do.

For even his brothers had no belief in him.

But after his brothers had gone up to the feast, then he went up, not publicly, but in secret.

Jesus said to her, Do not put your hand on me, for I have not gone up to the Father: but go to my brothers and say to them, I go up to my Father and your Father, to my God and your God.

So this saying went about among the brothers that this disciple would not undergo death: Jesus, however, did not say that he would not undergo death, but, If it is my desire for him to be here till I come back, what is that to you?