John Mark
Mark 3:18ESV·traditional attribution

Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the son of Alphaeus, and Thaddaeus, and Simon the Zealot,

Matthew Henry Presbyterian @wholebiblehenry

In these verses, we have, I. The choice Christ made of the twelve apostles to be his constant followers and attendants, and to be sent abroad as there was occasion, to preach the gospel. Observe, 1. The introduction to this call or promotion of disciples; He goes up into a mountain, and his errand thither was to pray.

Commenting on Mark 3:13-21

John Gill Reformed Baptist @doctorgill

And Judas Iscariot,.... So called to distinguish him from the other Judas; and is mentioned last for the following reason: which also betrayed him; and which action of his will ever render his name infamous among men. This man, with the rest, our Lord chose to be an apostle of his, though he knew he would betray him; in order to fulfil the purposes of...

Geneva Bible Notes Reformed @genevanotes

And Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the [son] of Alphaeus, and Thaddaeus, and Simon the Canaanite, (l) Whom Luke also calls Judas: and to make a distinction the other Judas is called Iscariot.