The Feast of St. Bartholomew, Apostle and Martyr
is today. There is information on him here.

When Philip told him that he had found the long-expected Messiah of whom Moses wrote, Nathanael (that is, Bartholomew) at first doubted. He was well read in the Scriptures, and knew the Christ was to be born in Bethlehem; whereas Jesus dwelt at Nazareth, which Nathanael supposed in consequence to be the place of His birth,—and he knew of no particular promises attached to that city, which was a place of evil report, and he thought no good could come out of it. Philip told him to come and see; and he went to see, as a humble single-minded man, sincerely desirous to get at the truth. In consequence, he was vouchsafed an interview with our Saviour, and was converted.

Now, from what occurred in this interview, we gain some insight into St. Bartholomew's character. Our Lord said of him, "Behold an Israelite indeed, in whom is no guile!" and it appears, moreover, as if before Philip called him to come to Christ, he was engaged in meditation or prayer, in the privacy which a fig-tree's shade afforded him. And this, it seems, was the life of one who was destined to act the busy part of an Apostle; quietness without, guilelessness within. This was the tranquil preparation for great dangers and sufferings! We see who make the most heroic Christians, and are the most honoured by Christ!

Venerable John Henry Newman, C.O., Parochial and Plain Sermons