Paul and the other Apostles didn't have computers, Churches with pews, potlucks, and 1 thousand other things big freaking deal it's not in the Bible not everything is meant to be in the Bible. Christianity and the practices developed not staying stagnant. You won't find "go only by the Bible" in the Bible that is an idea of men.
It was the early Church whom complied the Bible and passed down Christ teaching, if these brave Men and Women who dedicated their whole life to God did something they should have been doing te Church would have spoken. Let me tell you this if it hadn't been for Monks preserve copies of Scripture there would not be any now to use for personal use. Here is some more about Monks and Nuns:
When Martin Luther set off the Protestant Reformation, he unfortunately birthed a tradition of badmouthing monasticism. On many occasions he openly rejected monasticism, and even claimed that monasticism is unsupported by Scripture:
“I would suggest to those in high places in the church, firstly, that they should do away with all vows and religious orders; or at least not speak of them with approval or praise…
This kind of life finds no testimony or support in Scripture, but has been made to look imposing solely by the works of monks and priests. However numerous, sacred, and arduous they may be, these works, in God’s sight, are in no way whatever superior to the works of a farmer laboring in the field, or of a woman looking after her home… Vows only tend to the increase of pride and presumption.”
~ Martin Luther (The Babylonian Captivity of the Church)
“Hence all monasteries are founded upon the filth of the devil.”
~ Martin Luther (sermon on the Fourth Sunday after Trinity, commenting on Luke 6:36-42)
Yet when we read the Bible,
we meet godly men who lived like monks. Let’s consider the biblical stories of Elijah, those who took the Nazarite vow, John the Baptist, and the earliest examples of Christians living after Pentecost.
St. Elijah the Tishbite
Elijah was celibate, and he spent his life serving the Lord as a prophet. He spent a number of years as an ascetic, living alone in the wilderness, drinking only water and eating whatever the ravens would bring to him:
Then the word of the Lord came to [Elijah], saying, “Get away from here and turn eastward, and hide by the Brook Cherith, which flows into the Jordan. And it will be that you shall drink from the brook, and I have commanded the ravens to feed you there.” So he went and did according to the word of the Lord, for he went and stayed by the Brook Cherith, which flows into the Jordan. The ravens brought him bread and meat in the morning, and bread and meat in the evening; and he drank from the brook. (1 Kings 17:2-6)
According to historian Andrew Jotischkey, there were many patristic and medieval monks who considered Elijah to be a preeminent example of monastic life:
Patristic and medieval commentary celebrated Elijah as the Old Testament “type” of the hermit. Jerome discussed the respective claims of Elijah and John the Baptist to the title of “the first monk,” alongside the Egyptian desert fathers Anthony and Paul of Thebes. Rupert of Dentz, in the twelfth century, described Elijah as the “author and initiator” of monasticism. To Peter Damian, Elijah was the originator of the eremitical life. Monks themselves, like the Egyptian Onuphrius, were aware of following the example of Elijah; Peter the Venerable, looking back at the generation of Onuphrius as founders, saw Elijah as the ultimate monastic founder-figure. … Gerard of Nazareth prefaced his biographical collection of hermits by appealing to the example of Elijah.
The Nazarite Vow
A distinct aspect of Christian monasticism is its relative austerity, compared to the requirements made of other Christians. Monks and nuns are normally expected to make vows of celebacy, poverty, stability, and obedience. While other Christians are permitted to marry, to have personal possessions, to move from place to place, and to enjoy some level of independence in many decisions, monastics accept a life in which a greater level of strictness is expected in these four areas.
There is Scriptural precedent to the idea of having a special religious order, in which participants are required to meet standards not normally required of others. In the Old Testament, God provided people with the option of taking the Nazarite vow:
Speak unto the children of Israel, and say unto them, When either man or woman shall separate themselves to vow a vow of a Nazarite, to separate themselves unto the LORD: He shall separate himself from wine and strong drink, and shall drink no vinegar of wine, or vinegar of strong drink, neither shall he drink any liquor of grapes, nor eat moist grapes, or dried. All the days of his separation shall he eat nothing that is made of the vine tree, from the kernels even to the husk. All the days of the vow of his separation there shall no razor come upon his head: until the days be fulfilled, in the which he separateth himself unto the LORD, he shall be holy, and shall let the locks of the hair of his head grow. All the days that he separateth himself unto the LORD he shall come at no dead body. He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister, when they die: because the consecration of his God is upon his head. (Numbers 6:2-8)
There is nothing sinful about eating grapes, and there is nothing wrong with drinking wine or strong drink. It is not wrong for a man to have an occasional haircut. And there is nothing wrong with helping prepare a dead body for a funeral. Yet a Nazarite would willingly avoid these things, in obedience to his/her religious vows.
As part of a religious order, a faithful Nazarite accepted the additional austerity required for that way of life. So it is today with monastics.
Find more:
Monasticism in Scripture