'Brother's' in the Bible

Why do you look at the [insignificant] speck that is in your brother’s eye, but do not notice and acknowledge the [egregious] log that is in your own eye?

You hypocrite (play-actor, pretender), first get the log out of your own eye, and then you will see clearly to take the speck out of your brother’s eye.

For John had been saying to Herod, “It is not lawful [under Mosaic Law] for you to have your brother’s wife.”

But when Herod [Antipas] the tetrarch was repeatedly reprimanded [and convicted by John’s disapproval] for having Herodias, his brother’s wife [as his own], and for all the wicked things that Herod had done,

Why do you look at the speck that is in your brother’s eye, but do not notice or consider the log that is in your own eye?

How can you say to your brother, ‘Brother, allow me to take out the speck that is in your eye,’ when you yourself do not see the log that is in your own eye? You hypocrite (play actor, pretender), first take the log out of your own eye, and then you will see clearly to take out the speck that is in your brother’s eye.

Therefore, if [my eating a certain] food causes my brother to stumble (sin), I will not eat [such] meat ever again, so that I will not cause my brother to stumble.

and not be like Cain, who was of the evil one and murdered his brother [Abel]. And why did he murder him? Because Cain’s deeds were evil, and his brother’s were righteous.