John Mark
Mark 3:34ESV·traditional attribution

And looking about at those who sat around him, he said, “Here are my mother and my brothers!

Matthew Henry Presbyterian @wholebiblehenry

Here is, 1. The disrespect which Christ's kindred, according to the flesh, showed to him, when he was preaching (and they knew very well that he was then in his element); they not only stood without, having no desire to come in, and hear him, but they sent in a message to call him out to them (Mar 3:31, Mar 3:32), as if he must...

Commenting on Mark 3:31-35

Geneva Bible Notes Reformed @genevanotes

And he looked round about on them which sat about him, and said, Behold my mother and my brethren! (6) The spiritual family is larger than the biological family.