Priest in Chinese / Japanese...

提防律師 is a kind of Chinese joke about lawyers.

The first two characters mean “guard yourself against (an attack)” or “beware.”
The last two characters can be translated as lawyer, attorney, or solicitor.

Separately, those characters mean law/regulation/control and master/expert/teacher. Here, you can see the attorney meaning is pretty clear in the individual characters.

Please note this is Chinese only (it won't make sense in Japanese, and the last two characters are sometimes translated together as “Buddhist Priest” in Japanese).

僧侶/僧侶 is a Japanese title for a Buddhist monk.

The first Kanji means Buddhist priest or monk by itself.
The second Kanji means follower or companion.

Note, if you order this from the Japanese master calligrapher, the first character will look a bit more like the Kanji shown to the right than the Kanji shown above. Let us know if you have a preference, as both versions are technically-correct in both Chinese and Japanese.

In modern Japanese, 門主 is the title of a head priest of a temple or monastery.

This can also refer to the spiritual leader of the sect and/or direct descendant of its founder.
In the past, this could refer to the founder of a Buddhist sect.

The literal meaning of 門主 is gatekeeper or keeper of the gate.

In the Chinese Buddhist dictionary, this entry comes up as the controller of a gate or sect. However, this term is not commonly used in Chinese.

日蓮 is the title Nichiren.

This title refers to a Buddhist priest who lived from 1222 to 1282. He is the founder of the Nichiren sect of Buddhism.
According to historical documents, the Nichiren sect was established in 1252. Adding the character 宗 for sect, this would be 日蓮宗 (Nichiren sect), which is also known as the 法華宗 or Lotus sect.

According to Soothill-Hodous...
Nichiren's chief tenets are the three great mysteries 三大祕法, representing the trikāya:
1. 本尊 or chief object of worship, being the great maṇḍala of the worlds of the ten directions, or universe, i.e., the body or nirmāṇakāya of Buddha.
2. 題目 the title of the Lotus Sutra 妙法蓮華經 Myo-ho-ren-ge-kyo, preceded by Namo, or “Adoration to the scripture of the lotus of the wonderful law,” for it is Buddha's spiritual body.
3. 戒壇 the altar of the law, which is also the title of the Lotus as above; the believer, wherever he is, dwells in the Pure-land of calm light 寂光淨土, the saṃbhogakāya.

聖 is the simple, single-character religious form of “saint” in Chinese (also holds the same meaning in Japanese and Korean, though rarely used alone like this).

This can also mean holy, sage, master, or priest.
Note: 聖 is often used in compound words (words of more than one character) to create further meanings. In compounds, it can mean holy, sacred, or divine.

聖 is also used as the first word for Spanish and English place names such as “San Diego” and “St. Louis” in Chinese (not Japanese).

In the Buddhist context, this can represent ārya or sādhu. And mean a sage; wise and good; upright, or correct in all his character; sacred, holy, or saintly.

上帝使你神聖 means “Sanctified by God,” in Chinese.

This was added at the request of a customer. This may be more appropriate for a priest or reverend than a layman. But that depends on how your religion sees the order of things.

If you directly translate, you get something like, “God made you Holy.”

Here's the character breakdown:
上帝 = God
 使 = Makes; Made; Let
 你 = You
神聖 = Sacred; Holy; Sanctification; Divine; Hallow; Holiness

道士 is a Japanese Kanji, Korean Hanja, and Chinese title that means Daoist or Taoist.

This can refer to a Taoist priest or a person of high morals. This can also be applied to Buddhists and Śākyamuni (especially in Japanese). It suggests a person (or soldier) who follows the way or the right path. Thus a person who follows a path of virtue.

藩士 is a strange title for a wall scroll, but it may suit you if you see yourself as a warrior monk.

This title is not commonly used but will be understood in Chinese and Japanese. It can also be read as “armed monks.”

布施 is the Buddhist practice of giving known as Dāna or दान from Pali and Sanskrit.

Depending on the context, this can be alms-giving, acts of charity, or offerings (usually money) to a priest for reading sutras or teachings.

Some will put Dāna in these two categories:
1. The pure or unsullied charity, which looks for no reward here but only in the hereafter.
2. The sullied almsgiving whose object is personal benefit.
The first kind is, of course, the kind that a liberated or enlightened person will pursue.

Others will put Dāna in these categories:
1. Worldly or material gifts.
2. Unworldly or spiritual gifts.

You can also separate Dāna into these three kinds:
1. 財布施 Goods such as money, food, or material items.
2. 法布施 Dharma, as an act to teach or bestow the Buddhist doctrine onto others.
3. 無畏布施 Courage, as an act of facing fear to save someone or when standing up for someone or standing up for righteousness.

The philosophies and categorization of Dāna will vary among various monks, temples, and sects of Buddhism.

Breaking down the characters separately:
布 (sometimes written 佈) means to spread out or announce, but also means cloth. In ancient times, cloth or robs were given to the Buddhist monks annually as a gift of alms - I need to do more research, but I believe there is a relationship here.
施 means to grant, to give, to bestow, to act, to carry out, and by itself can mean Dāna as a single character.

Dāna can also be expressed as 檀那 (pronounced “tán nà” in Mandarin and dan-na or だんな in Japanese). 檀那 is a transliteration of Dāna. However, it has colloquially come to mean some unsavory or unrelated things in Japanese. So, I think 布施 is better for calligraphy on your wall to remind you to practice Dāna daily (or whenever possible).

頓悟之前砍柴挑水; 頓悟之後砍柴挑水 means “Before enlightenment, chop wood, carry water; After enlightenment, chop wood, carry water.

This is a Chinese proverb that is attributed to 吴力 (Wú Lì) who lived between 1632 and 1718 - living part of his life as a devout Buddhist, and many years as a Catholic Jesuit Priest in China - what an interesting life!

This has been explained many times in many ways. I am a Buddhist, and here is my brief take on this proverb...

Before enlightenment, one may find daily chores mundane, tedious, and boring. However, upon reaching enlightenment one is not relieved of the details of daily life. An enlightened person will, however, see such chores as a joy, and do them mindfully.

There is another version floating around, which is 在你領悟之前砍柴、運水。在你領悟之後，砍柴、運水。
If you want this other version, just contact me. The meaning is the same, just different phrasing.