1: After these things Paul departed from Athens and came to Corinth 2: And found a certain Jew named Aquila born in Pontus lately come from Italy with his wife Priscilla because that Claudius had commanded all Jews to depart from Rome and came to them 3: And because he was of the same craft he abode with them and worked for by their occupation they were tentmakers 4: And he reasoned in the synagogue every Sabbath and persuaded the Jews and the Greeks 5: And when Silas and Timotheus were come from Macedonia Paul was pressed in the spirit and testified to the Jews that Jesus was Christ 6: And when they opposed themselves and blasphemed he shook his raiment and said to them Your blood be upon your own heads I am clean from now on I will go to the Gentiles 7: And he departed from there and entered into a certain man's house named Justus one who worshipped God whose house joined hard to the synagogue 8: And Crispus the chief ruler of the synagogue believed on the Lord with all his house and many of the Corinthians hearing believed and were baptized 9: Then spoke the Lord to Paul in the night by a vision Be not afraid but speak and hold not your peace 10: For I am with you and no one shall set on you to hurt you for I have much people in this city 11: And he continued there a year and six months teaching the word of God among them 12: And when Gallio was the deputy of Achaia the Jews made insurrection with one accord against Paul and brought him to the judgment seat 13: Saying This fellow persuades men to worship God contrary to the law 14: And when Paul was now about to open his mouth Gallio said to the Jews If it were a matter of wrong or wicked lewdness O you Jews reason would that I should bear with you 15: But if it be a question of words and names and of your law look you to it for I will be no judge of such matters 16: And he drove them from the judgment seat 17: Then all the Greeks took Sosthenes the chief ruler of the synagogue and beat him before the judgment seat And Gallio cared about none of those things 18: And Paul after this tarried there yet a good while and then took his leave of the brethren and sailed from there into Syria and with him Priscilla and Aquila having shorn his head in Cenchrea for he had a vow 19: And he came to Ephesus and left them there but he himself entered into the synagogue and reasoned with the Jews 20: When they desired him to tarry longer time with them he consented not 21: But bid them farewell saying I must by all means keep this feast that comes in Jerusalem but I will return again to you if God wills And he sailed from Ephesus 22: And when he had landed at Caesarea and gone up and greeted the church he went down to Antioch 23: And after he had spent some time there he departed and went over all the country of Galatia and Phrygia in order strengthening all the disciples 24: And a certain Jew named Apollos born at Alexandria an eloquent man and mighty in the scriptures came to Ephesus 25: This man was instructed in the way of the Lord and being fervent in the spirit he spoke and taught diligently the things of the Lord knowing only the baptism of John 26: And he began to speak boldly in the synagogue whom when Aquila and Priscilla had heard they took him to them and expounded to him the way of God more perfectly 27: And when he was disposed to pass into Achaia the brethren wrote exhorting the disciples to receive him who when he was come helped them much who had believed through grace 28: For he mightily convinced the Jews and that publicly showing by the scriptures that Jesus was Christ
 Even though Paul was bold, he had fears, just like everyone else. He had already been whipped (39 stripes), imprisoned, and stoned for the cause of Christ. God, in his infinite mercy, came to Paul in a vision to calm his fears. It is a sorry fact, that even though people must believe in the supernatural to even identify as Christians, God’s people are often taught to fear and shun the mystical which includes salvation itself, along with all the gifts of the Holy Spirit, i.e., ministry gifts, the miraculous gifts, and fruits of the Spirit. This writer’s opinion is that this is done to empower the Nicolaitan-like, hierarchal, structure of all denominations and most churches.
 Paul consecrated himself to God by taking a Nazarite vow which is described as following: Numbers 6:1 And YHWH spoke to Moses saying 2: Speak to the children of Israel and say to them When either a man or a woman shall separate themselves to vow a vow of a Nazarite to separate themselves to YHWH 3: They shall separate themselves from wine and strong drink and shall drink no vinegar of wine or vinegar of strong drink neither shall they drink any liquor of grapes nor eat moist grapes or dried 4: All the days of their separation shall they eat nothing that is made of the vine tree from the kernels even to the husk 5: All the days of the vow of their separation there shall no razor come upon their heads until the days be fulfilled in the which they separate themselves to YHWH they shall be holy and shall let the locks of the hair of their heads grow 6: All the days that they separate themselves to YHWH they shall come at no dead body 7: They shall not make themselves unclean for their father or for their mother for their brother or for their sister when they die because the consecration of their God is upon their heads 8: All the days of their separation they are holy unto YHWH 9: And if any one die very suddenly by them and they have defiled the head of their consecration then they shall shave their heads in the day of their cleansing on the seventh day shall they shave it 10: And on the eighth day they shall bring two turtles or two young pigeons to the priest to the door of the tabernacle of the congregation 11: And the priest shall offer the one for a sin offering and the other for a burnt offering and make an atonement for them for that they sinned by the dead and shall hallow their heads that same day 12: And they shall consecrate unto YHWH the days of their separation and shall bring a lamb of the first year for a trespass offering but the days that were before shall be lost because their separation was defiled 13: And this is the law of the Nazarite when the days of their separation are fulfilled they shall be brought to the door of the tabernacle of the congregation 14: And they shall offer their offering to YHWH one he lamb of the first year without blemish for a burnt offering and one ewe lamb of the first year without blemish for a sin offering and one ram without blemish for peace offerings 15: And a basket of unleavened bread cakes of fine flour mingled with oil and wafers of unleavened bread anointed with oil and their meat offering and their drink offerings 16: And the priest shall bring them before YHWH and shall offer their sin offering and their burnt offering 17: And he shall offer the ram for a sacrifice of peace offerings unto YHWH with the basket of unleavened bread the priest shall offer also their meat offering and their drink offering 18: And the Nazarite shall shave the head of their separation at the door of the tabernacle of the congregation and shall take the hair of the head of their separation and put it in the fire which is under the sacrifice of the peace offerings 19: And the priest shall take the boiled shoulder of the ram and one unleavened cake out of the basket and one unleavened wafer and shall put them upon the hands of the Nazarite after the hair of their separation is shaved 20: And the priest shall wave them for a wave offering before YHWH this is holy for the priest with the wave breast and heave shoulder and after that the Nazarite may drink wine 21: This is the law of the Nazarite who has vowed and of their offering to YHWH for their separation beside that that their hand shall get according to the vow which they vowed so they must do after the law of their separation.
 Because of his shaved head, the Jews could readily see that Paul had recently taken a Nazarite vow. The shaved head was therefore a holy thing to the Jews--not a fashion statement—as was the uncut hair of the Nazarite. Only those who had taken a Nazarite vow were forbidden to cut their hair, but only during the days of their vow—it did not matter whether they were men or women. Nowhere in the Bible are women commanded to allow their hair to grow or forbidden to cut their hair—both are associated with the holy vow of the Nazarite. Ezekiel wrote about people who did not know the difference between the holy and the profane.
 To be “Mighty in the scriptures” consists not only of knowing the Word of God, but obeying the Word of God. Jesus said strength comes from being doers of the Word not hearers only.
 Priscilla was teacher to this man, who was already a teacher and a preacher “mighty in the scriptures,” right along with Aquila. It is remarkable that this is the third-time Luke mentions Priscilla by her name. And in the previous mention, she was named first—before her husband. This was simply not done in ancient times, and rarely done now, even in modern times—unless it is a deliberate choice on the part of the writer—so it is certain that Luke (who was a Greek physician—the Greeks were even more misogynistic than the Jews) was deliberately challenging the gender biased social norms of his time by naming Priscilla at all, much less by naming her first in the previous mention.
 It was the scriptures of the Old Testament that he was expounding from. We should never cast aside the Old Covenant as irrelevant to New Testament Christianity as it was the Bible of the early Church. The Word of God is all one. Christians have a duty and high calling to know the Word of God—all of it. When Paul, in his letters to the churches, exhorted to study the scriptures, he was referring to the Hebrew scriptures of the Old Covenant (they had also been translated into Greek [the Septuagint—LXX]).